Testing EW Systems: A Moving Target
By Jim Taber, Director of Sales and Marketing, X-COM Systems
In the world of test and measurement challenges, evaluating the performance of an EW system is arguably in the very top tier, and thanks to the increasingly complex and chameleon-like characteristics of its archrival, the AESA radar, it is becoming increasingly difficult.

MMD March 2014

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Band Reject Filter Series
Higher frequency band reject (notch) filters are designed to operate over the frequency range of .01 to 28 GHz. These filters are characterized by having the reverse properties of band pass filters and are offered in multiple topologies. Available in compact sizes.
RLC Electronics

SP6T RF Switch
JSW6-33DR+ is a medium power reflective SP6T RF switch, with reflective short on output ports in the off condition. Made using Silicon-on-Insulator process, it has very high IP3, a built-in CMOS driver and negative voltage generator.

Group Delay Equalized Bandpass Filter
Part number 2903 is a group delayed equalized elliptic type bandpass filter that has a typical 1 dB bandwidth of 94 MHz and a typical 60 dB bandwidth of 171 MHz. Insertion loss is <2 dB and group delay variation from 110 to 170 MHz is <3nsec.
KR Electronics

Absorptive Low Pass Filter
Model AF9350 is a UHF, low pass filter that covers the 10 to 500 MHz band and has an average power rating of 400W CW. It incurs a rejection of 45 dB minimum at the 750 to 3000 MHz band, and power rating of 25W CW from 501 to 5000 MHz.

LTE Band 14 Ceramic Duplexer
This high performance LTE ceramic duplexer was designed and built for use in public safety communication and commercial cellular applications. It operates in Band 14 and offers low insertion loss and high isolation to enable clear communications in the LTE network.
Networks International

See all products in this issue

  Monday, May 25, 2015 - Featured Cover Products
  • Models D10149 and D10296 are a 2-way and 4-way combiner/divider pair covering the full 2 to 6 GHz bandwidth. Conservatively rated at 200W CW, they operate with low insertion loss and offer full port-to-port isolation. Designed to tolerate MIL-STD-810 environmental conditions - more...

  • An enhanced Quantum Rubidium Miniature Atomic Clock (MAC) SA.3X family is now available. As one of the industry’s smallest, lightest and highest-performing MACs, the enhanced Quantum MAC SA.3X - more...

  • The CH 40425 40 dB dual-directional coupler for airborne applications handles 3kW CW from 400 to 450 MHz, has insertion loss of 0.08 dB, directivity of 18 dB, VSWR of 1.1:1, and an operating temperature range of -40° to +85° C. - more...

    TRM Microwave

  Feature Articles

Nonlinear Circuit Analysis in Time and Frequency Domain
By AWR Group, NI

A Fractional-N PLL Synthesizer Without Delta-Sigma Modulation as a New Concept in Frequency Synthesis
By Dr. Vitaly Koslov

Communications Systems—A Design Primer
By Plextek RFI

Selecting the Magazine Handler, A Critical Production Choice
By Martek Automation

• A Look Back at Mobile World Congress (MWC)
By Karen Hoppe, Editor, Microwave Product Digest


  Featured in April On The Market.
xxx E-Band Balanced Harmonic Mixer
Model SFH-12SFSF-A1 is an E-band balanced harmonic mixer especially designed for Keysight Technologies’ spectrum analyzer series. It employs high performance GaAs Schottky flip chip diodes, balanced configuration to produce superior RF performance.
Sage Millimeter
xxx Bandpass Nano Filter
Model NLC3250-812-4SS is a SMT, 3250 MHz bandpass Nano filter. The filter has an Fc 3250 MHz with an 812 MHz passband with <2.5 dB insertion loss in-band. It has >40 dB rejection @ 850 MHz and 5050 MHz. Overall size is 0.65 x 0.20 x 0.08”.
3H Communication Systems
xxx Tuning Control Switches
Now available with full design support capabilities are two new tuning control switches from Peregrine Semiconductor. The PE613010 and PE613050 devices are ideal for antenna tuning applications, targeting impedance-matching and aperture-tuned applications.
Richardson RFPD
xxx WiFi Integrated PA Module
The RFPA5522 is a three-stage power amplifier (PA) designed for 802.11a/n/ac applications. The integrated input and output 50 ohm match greatly reduces the layout area, bill of materials and manufacturability cost in the customer application. It is manufactured on an advanced InGaP HBT process and is capable of achieving linear powers up to 23 dBm with an EVM <1.8% while maintaining excellent PAE. Frequency coverage is from 4.9 to 5.925 GHz.
xxx GaN Wideband Transistor
The NPT2021 GaN HEMT is a wideband transistor optimized for DC to 2.5 GHz operation. This device supports CW, pulsed, and linear operation with output power levels to 45W in an industry standard plastic package with bolt down flange. The unit is 100% RF tested.
   Industry News
NRAO and Mini-Circuits Forge New Partnership to Enable Commercial Development of Cascadable Absorptive RF Filters
RFMW Announces Two Appointments
The Next Generation Space Interconnect Standard (NGSIS)
DHS and NASA Show Off Radar FINDER System
Microwave Radiation Tasty Solution for Killing Pesty Snails?
Navy Launches UAV “Swarms”
FCC May Open Up Radar Bands for Cellular on Shared Basis
France Military Says Wind Turbines Are Threat to Security
Samsung, Apple Lead Smartphone Sales in First Quarter
U.S. Navy Leads All Governments for Patent Filings for Sixth Straight Year
FCC Offers %1.65 to Wireless Carriers for Rural Broadband Deployment
Sprint Inks Deal with Boingo for Wi-Fi Offload at Airports
   White Papers

The Design of Ultra Narrowband Amplifiers Using Small-Signal Varactor Upconverters
This paper presents a method of realizing tunable microwave amplifiers with ultra narrow bandwidths that can be less than 0.5% by the use of a varactor up-converter (UC).
Planar Monolithics

Directivity and VSWR Measurements
Return loss and VSWR measurements are complicated by the finite performance of the directional device used to measure the reflected power. The only accurate and convenient way to make return loss measurements is with a well matched high directivity directional coupler or bridge.
Marki Microwave

Switch Solutions for Systems with Low PIM Requirements
Dow-Key Microwave has invested in R&D for new RF switch products designed specifically to reduce intermodulation (IM) in coaxial switches.
Dow-Key Microwave

How to Specify RF and Microwave Filters
Covers cavity, ceramic, LC, crystal and helical filters.
Anatech Electronics

Mounting Considerations for Medium Power Surface-Mount RF Devices
Covers all factors that must be considered when mounting SMT devices.
TriQuint Semiconductor

Biasing MMIC Amplifiers
How to bias MMICs along with theory and techniques.


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Uncertain Times for DefenseWill OpenRFM Shake Up the Microwave Industry?
By Barry Manz

Throughout the history of the RF and microwave industry there has never been a form factor standardizing the electromechanical, software, control plane, and thermal interfaces used by integrated microwave assemblies (IMAs) employed in defense systems. Rather, every system has been built to meet the requirements of a specific system, which may be but probably isn’t compatible with any other system. It’s simply the way the industry has always responded to requests from subcontractors that in turn must meet the physical, electrical, and RF requirements of prime contractors. Read More...

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