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Experimental Implementation of a Low-Cost, Fully-Analog Self-Jamming Canceller for UHF RFID Devices

It is quite common for transceivers to operate with the RF receiver and transmitter working on different time slots. Typical applications are radars and transceivers in the field of communications. Generally, the receiver is turned off when the transmitter broadcasts and vice versa. This is done in order to prevent the transmitter from blinding the receiver or causing the RF low noise amplification (LNA) stage to saturate. When keeping a receiver active, some leakage of RF energy is inevitable, and therefore shielding is applied to mitigate spurious signals. However, there are many applications wherein the receiver cannot be turned off. To address these applications, we investigate the design and performance of a fully-analog self-jamming canceller able to operate in UHF (Ultra High Frequency) RFID devices. While the traditional cost to design and build this type of topology can be quite high, our proposal is based on a low-cost physical approach. In addition to using common SMT (Surface Mount Technology) devices, we leveraged a new piece of modular technology offered by X-Microwave which allows designers to easily produce RF solutions with a broad portfolio of modular system drop-in blocks. A prototype was realized and the measured results are in close agreement with theoretical simulations. Significant damping of the leaked signal in the receiving channel was realized.

Rossi, M.; Liberati, R.M.; Frasca, M.; Richardson, J. Experimental Implementation of a Low-Cost, Fully-Analog Self-Jamming Canceller for UHF RFID Devices. Electronics 2020, 9, 786

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X-Microwave Announces mmWave Reference Design Kits Featuring Analog Devices ADMV1013 and ADMV1014 Up/Downconverters

News Highlights

  • Ready-to-use solution covering 24GHz – 44GHz, including 28/39 GHz 5G bands
  • Featuring Analog Devices ADMV1013 and ADMV1014 Up/Downconverter
  • Complete solution includes PLL/VCO, filters, hybrid coupler, and programming interface

Austin, Texas, April 27, 2020 – X-Microwave, LLC the market leader in RF and Microwave drop-in components announced today two new mmWave Reference Design Kits, XM-RDK-201 (ADMV1013 Upconverter) and XM-RDK-202 (ADMV1014 Downconverter). These ready-to-use solutions include all of the components needed to successfully up-convert and down-convert mmWave waveforms from low frequency IF (800 MHz – 6 GHz) to RF frequencies (24GHz to 44GHz). The reference design kits are built using X-MWblock® modular building blocks and include the required supporting components for generating and filtering the local oscillator (LO) as well as a 90° hybrid coupler for the IF input/output. The PLL/VCO and Up/Downconverter are programmed though the included X-MWcontroller touch screen interface.

“The ADMV1013 and ADMV1014 up/downconverters are highly integrated ICs that can serve many applications, but require additional components to use them effectively.” said Erik Luther, Vice President at X-Microwave, “We’re excited to provide a read-to-use solution for both component evaluation and prototyping production integrated microwave assemblies with X-MWblocks.”

The X-Microwave design system (X-MWsystem) consists of modular X-MWblock drop-in components featuring amplifiers, mixers, switches, attenuators, and more from the industry’s leading component manufacturers.  Individual X-MWblocks can be connected together solderlessly to rapidly build RF and Microwave assemblies from DC to 60 GHz. X-MWblocks are designed for use in production applications either individually as single-function connectorized modules or together in a cascade to rapidly produce custom integrated microwave assemblies (IMAs).

Visit to learn more about X-Microwave Reference Design Kits

About X-Microwave, LLC
X-Microwave is the global leader in modular RF and Microwave drop-in components featuring packaged and bare die devices from the industry’s leading manufacturers.  The modular X-MWblocks® design system allows RF and Microwave engineers to design, prototype, and produce integrated microwave assemblies (IMAs) faster at lower cost with increased probability of first past design success. X-MWblocks are designed and manufactured by X-Microwave in Austin, Texas (USA). For more information, visit

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X-Microwave Drop-In Format Supports 800-Plus Mini-Circuits Components

The X-Microwave portfolio of Mini-Circuits products now includes over 800 Mini-Circuits models on over 1,000 X-MWblock drop-in modules. It more than doubles the number of offerings that were first available when the partnership between the two companies began in 2017. The expanded selection features models in 12 categories, which include:

  • Amplifiers
  • Attenuators
  • Couplers
  • Equalizers
  • Filters
  • Limiters
  • Mixers
  • Multipliers
  • Splitters
  • Switches
  • Transformers and baluns
  • VCOs

In addition to the growing variety of drop-in blocks, X-Microwave introduced over 700 part numbers for Mini-Circuits components in connectorized housings for evaluation and integration into subassemblies.

Mini-Circuits Gali-51+

X-Microwave’s X-MWsystem is a modular, solderless evaluation system that incorporates thousands of physically compatible drop-in building blocks from multiple manufacturers for prototyping microwave assemblies. System blocks come fully characterized and modeled with X-parameters, S-parameters, and Sys-parameters. As a result, simulation and physical configuration through X-Microwave’s free online tools for nonlinear simulation and mechanical layout becomes an easier task. This modular approach, which eliminates the need for custom evaluation board layouts, has turned into a popular solution within the industry to shorten design cycles and accelerate time to market.

“Our partnership with X-Microwave has allowed us to offer a valuable and truly innovative resource to customers using Mini-Circuits components in their designs,” says Steven Scheinkopf, VP of technical marketing at Mini-Circuits. “We’re very pleased to continue expanding the partnership to support our customers’ design efforts with even more options.”

John Richardson, president of X-Microwave adds, “We are very excited about the number of Mini-Circuits parts that are now available on our drop-in format. Mini-Circuits’ broad range of parts and our modular system make it easy for designers to quickly transition from prototype to production hardware.  For maximum flexibility, we are aggressively designing in the full portfolio of Mini-Circuits SMT and die parts.”

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Prototyping an UWB Airborne Radar for Snow Probing Using Modular Building Blocks

F. Rodriguez-Morales, C. Carabajal, A. Paden and C. Leuschen, Center for Remote Sensing of Ice Sheets, University of Kansas; J. McDaniel, Advanced Radar Research Center, University of Oklahoma; and A. Wolf and S. Garrison, Kansas City National Security Campus

A set of compact ultra-wideband (UWB) radar transmit/receive modules has been developed using rapid prototyping. The modules are based on tailored microwave filters, off-the-shelf building blocks from a commercial supplier and custom DC biasing circuits. As an intermediate step toward full system miniaturization, the integration of microwave components using this technique enables evaluation of different configurations to improve radar performance with a reduced form factor.

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Demonstration System for Radio-Frequency Microelectromechanical Systems Components

Lee A Griffin – Georgia Institute of Technology, Atlanta, GA
Robert R Benoit and Ronald G Polcawich – Sensors and Electron Devices Directorate, ARL

The combination of piezoelectrics and microelectromechanical systems (MEMS) can result in devices with a wide range of applications, including resonators, energy harvesters, and various sensors. Currently, improvement of MEMS devices designed to operate in the radio-frequency (RF) regime has been of particular interest due to the devices’ use in both commercial and military satellites and aerospace systems. The work presented characterizes and analyzes new designs for various RF MEMS devices produced at the US Army Research Laboratory. Their integration to a proposed mobile RF wireless communication system was investigated by developing a proof-of-concept demonstration of the proposed system.
The RF circuitry of the proposed system consists of various RF MEMS switches and filters. A customized smartphone modification was used to demonstrate the functionality of the RF circuitry and directly compare the size/weight/performance of the MEMS devices to commercial off-the-shelf components.

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IDT and X-Microwave Provide Modular RF Design Solutions


IDT and X-Microwave Partner to Deliver Complete Modular RF Design Solutions for Easy Design, Simulation, and Prototyping

Customers are able to design with more than 20 IDT RF products utilizing X-Microwave’s patented building block system and simulation tools

SAN JOSE, Calif., Nov. 28, 2017 /PRNewswire/ — Integrated Device Technology, Inc. (IDT) (NASDAQ: IDTI) today announced that it has partnered with X-Microwave, an industry leader in modular RF and microwave systems and tools, and innovator of the “Modular Building Block System”, to deliver a complete solution for customers designing with IDT RF and microwave products.

IDT’s industry-leading innovative product portfolio of flexible broad band RF solutions enables next-generation communication systems, allowing customers to increase data rates and optimize efficiency. Today’s higher data rates drive the need for better radio signal-to-noise ratios, which translates to the need for IDT’s higher linearity RF components. IDT’s patented RF solutions with unique technical innovations address the evolving needs of a wide range of applications, including 4G and 5G base stations, communications systems, microwave (RF/IF), CATV, test and measurement systems, and industrial applications.

X-Microwave delivers a complete modular building block eco-system of RF and microwave drop-in components, as well as test and prototyping accessories. The initial offering of X-Microwave modular solutions featuring IDT products will include RF switches, mixers, digital step attenuators (DSAs), voltage variable attenuators (VVAs), variable gain amplifiers (VGAs), and wideband RF synthesizers/PLLs.

“We are excited about our partnership with X-Microwave and the new opportunities and resources it will bring to our RF customers,” said Duncan Pilgrim, general manager of IDT’s RF group. “IDT’s customers will now have access to our industry-best RF products coupled with complete design tools to address every phase of the development process from concept to prototype to production hardware.”

“X-Microwave is happy to have established a partnership with IDT, an innovative leader in the RF market,” said John Richardson, President and founder of X-Microwave. “X-Microwave’s modular building blocks along with advanced simulation tools provide customers an easy and elegant way to simulate, prototype and produce new designs. Our boards and tools reduce design risk and accelerate time to market.”

IDT’s initial rollout will include more than 20 RF products as drop-in modular blocks, with more coming in the near future. To see the complete list of compatible products, visit For more information about IDT’s industry-leading portfolio of RF switches and other broadband solutions, visit the RF Products webpage or contact your local IDT sales representative.

About X-Microwave
X-Microwave is the founder of the innovative modular building block system called X-MWsystem. X-Microwave’s modular drop-in components and industry leading online tools address every phase of the RF and microwave development process from concept to prototype to production hardware. To “Get on the Grid” and realize the full potential of X-Microwave’s modular system, visit

About IDT
Integrated Device Technology, Inc. develops system-level solutions that optimize its customers’ applications. IDT’s market-leading products in RF, high performance timing, memory interface, real-time interconnect, optical interconnect, wireless power, and smart sensors are among the company’s broad array of complete mixed-signal solutions for the communications, computing, consumer, automotive and industrial segments. Headquartered in San Jose, Calif., IDT has design, manufacturing, sales facilities and distribution partners throughout the world. IDT stock is traded on the NASDAQ Global Select Stock Market® under the symbol “IDTI.” Additional information about IDT can be found at Follow IDT on FacebookLinkedInTwitterYouTube.

© 2017, Integrated Device Technology, Inc. IDT and the IDT logo are trademarks or registered trademarks of Integrated Device Technology, Inc., and its worldwide subsidiaries. All other brands, product names and marks are or may be trademarks or registered trademarks used to identify products or services of their respective owners.

IDT Press Contact:
Krista Pavlakos
Director, Demand Creation & Communications
Phone: (408) 574-6640

SOURCE Integrated Device Technology, Inc.

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Mini-Circuits Available in Modular Drop-In Format

Mini-Circuits Components Now Available in Modular Drop-In Format from X-Microwave

7 August 2017 – Round Rock, TX and Brooklyn, NY – Mini-Circuits and X-Microwave are pleased to announce their collaboration to offer a wide selection of Mini-Circuits’ components in X-MWblock® drop-in format. X-Microwave, an innovative leader committed to optimizing the RF/microwave design process, has developed X-MWsystem®, the industry’s first truly modular, solderless evaluation system with a growing portfolio of physically compatible drop-in building blocks for prototyping microwave assemblies. Mini-Circuits is proud to extend availability of our products through the X-Microwave component ecosystem as part of our commitment to providing best-in-class technical resources for customers designing Mini-Circuits parts into their systems.

The partnership launches today with an initial offering of over 400 X-MWblocks for Mini-Circuits components, including our popular LTCC filters, patented MMIC reflectionless filters, attenuators, mixers, multipliers, limiters, couplers, splitters and high-performance MMIC amplifiers, with more models planned for future release. System blocks come fully characterized and modeled with X-parameters® and S-Parameters, enabling easy simulation through X-Microwave’s free, online, non-linear simulation tool based on Keysight’s Genesys Spectrasys® engine. After simulation, designers can quickly configure signal chains using an online Mechanical Layout Tool (MLT) by moving 2-D models of the components around on the grid. The X-MWblocks for Mini-Circuits components are then physically configured on a solderless prototyping plate to build integrated microwave assemblies for testing and design validation. The same drop-in components can then be moved into compatible production housings. This novel, modular approach eliminates the need for custom evaluation board layouts, dramatically shortening design cycles and accelerating time to market

“X-Microwave is proud to partner with Mini-Circuits to offer their unique range of high performance RF and microwave components on our modular drop-in format,” says John Richardson, President of X-Microwave. “Adding Mini-Circuits components to our portfolio is an exciting step in our mission to provide the full complement of components across all categories enabling designers to quickly and efficiently develop any market solution.”

Mini-Circuits President, Ted Heil comments, “Through our partnership with X-Microwave, we’re enabling our customers to more rapidly validate Mini-Circuits models at the system level and confirm their simulation results. We all know parasitics and real-life environmental effects are important factors in evaluating performance. X-Microwave’s drop-in blocks with their jumper-anchor interface is a very novel way to create a low parasitic that you can’t achieve by combining traditional supplier eval boards. We think the X-Microwave system adds another element to the engineer’s toolbox to capture more realistic results and speed up the transition from concept to working design.”

Look for the X-Microwave link on selected Mini-Circuits product dashboard pages to view corresponding X-Microwave dashboards. Mini-Circuits will also maintain an online directory of Mini-Circuits part numbers referenced to sibling X-Microwave part numbers as a convenience to our customers.

About X-Microwave
X-Microwave, LLC, is the founder of the innovative modular building block system called X-MWsystem. X-Microwave’s modular drop-in components and industry leading online tools address every phase of the RF and microwave development process from concept to prototype to production hardware. To “Get on the Grid” and realize the full potential of X-Microwave’s modular system, visit

About Mini-Circuits
Mini-Circuits is a global leader in the design, manufacture, and distribution of RF and microwave components and systems for commercial, industrial, medical, space and military applications from DC to 50 GHz. Mini-Circuits’ 27 product lines comprise thousands of off-the-shelf and custom models supporting over 20,000 customers worldwide.

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Custom MMIC’s Latest Circuits Added to X-Microwave’s Catalog

Posted on Tuesday, June 20, 2017

We’ve expanded our collaboration with X-Microwave, the innovative developers of a modular/drop-in simulation, prototyping, and production system for solderless and reconfigurable RF/microwave circuits up to 67 GHz. The X-MWblockTM system enables efficient and expedient microwave and millimeter-wave circuit development and testing, using industry grade non-linear online simulation tools powered by Keysight’s Genesys Spectrasys engine. The expanded partnership will bring over 35 of Custom MMIC’s leading LNAs, PAs, Distributed Amplifiers, Driver Amplifiers, Low Phase Noise Amplifiers, Phase Shifters, Switches, and Mixers to the X-Microwave system.The companies have plans to add more of the 100-plus products available from Custom MMIC to the X-MWBlockTM system in the near future.

“We are excited to further expand our relationship with X-Microwave”, says John Greichen, Vice President Sales and Marketing for Custom MMIC, “Their X-MWsystemTM is a cost-effective, rapid prototyping system which saves our customers in development time and expense.”

The X-Microwave system leverages a unique grid-based modular architecture that facilitates drop-in component configuration of a complete RF, microwave, or millimeter-wave system. Initially, the X-Parameter and S-Parameter models of each X-MWblockTM can be assembled and analyzed in X-Microwave’s free online system simulation tool. Once desired performance is achieved, the necessary X-MWblockTM components can be purchased with a modular prototype platform. After testing and verification, these same components can be seamlessly integrated into a final production assembly housing. The X-MWsystem provides unprecedented ease of simulation, design, prototyping, and integration of microwave and millimeter-wave components, such as Custom MMIC’s wide range of high performance RF and Microwave MMICs.

“We are excited to announce our extended collaboration with Custom MMIC to offer their broad range of RF and Microwave products on our format”, says John Richardson, Founder and President of X-Microwave, “Custom MMIC products, such as their latest Low Phase Noise packaged amplifiers to 22 GHz and in DIE form to 40 GHz, are filling industry gaps and are exciting additions to our portfolio of Drop-In Components.”

Our innovative MMICs easily work within the X-Microwave modular platform, and provide distinct features that even further reduce system design time and complexity. For example, many of our GaAs LNAs, PAs, Distributed Amplifiers, and Driver Amplifiers benefit from our design expertise with positive bias and positive gain slope features, which reduce the need for costly additional bias and gain conditioning circuitry. Furthermore, our leading ultra-low noise LNAs and low phase noise amplifiers (LPNAs) offer critical performance requirements for next-generation Electronic Warfare, SIGINT, satellite, and communications technologies.

About X-Microwave
X-Microwave, LLC, is the founder of the innovative modular building block system called X-MWsystemTM. X-Microwave’s modular drop-in components and online tools address every phase of the RF and microwave development process from concept to prototype to production hardware. To “Get on the Grid” and realize the full potential of X-Microwave’s modular system, visit

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Hara Madhav Talasila – University of Kansas

Defended January 20, 2017

Remote sensing with radar systems on airborne platforms is key for wide-area data collection to estimate the impact of ice and snow masses on rising sea levels. The NASA P-3B and DC-8, as well as other platforms, successfully flew with multiple versions of the Snow Radar developed at the Center for Remote Sensing of Ice Sheets. Compared to these manned missions, the Global Hawk Uninhabited Aerial Vehicle can support flights with long endurance, complex flight paths and flexible altitude operation up to 70,000 ft. This thesis documents the process of adapting the 2-18 GHz Snow Radar to meet the requirements for operation on manned and unmanned platforms from 700 ft to 70,000 ft. The primary focus of this work is the development of an improved microwave chirp generator implemented with frequency multipliers. The x16 frequency multiplier is composed of a series of x2 frequency multiplication stages, overcoming some of the limitations encountered in previous designs. At each stage, undesired harmonics are kept out of the passband and filtered. The miniaturized design presented here reduces reflections in the chain, overall size, and weight as compared to the large and heavy connectorized chain currently used in the Snow Radar. Each stage is implemented by a drop-in type modular design operating at microwave and millimeter wavelengths; and realized with commercial surface-mount integrated circuits, wire-bondable chips, and custom filters. DC circuits for power regulation and sequencing are developed as well. Another focus of this thesis is the development of the band-pass filters used in the frequency multiplier using different distributed element filter technologies. Multiple edge-coupled band pass filters are fabricated on alumina substrate based on the design and optimization in computer-aided design tools. Interdigital cavity filter models developed in-house are validated through full-wave iv electromagnetic simulation and measurements. Overall, the measured results of the modular frequency multiplier and filters match with the expected responses from original design and cosimulation outputs. The design files, test setups, and simulation models are generalized to use with new designs in the future.