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Solid-State T/R Module Design and Modeling for Radar Applications

by Manjunatha Reddy H. V. and Tabish Khan, Cadence Design Systems, Inc. Transmit/receive (T/R) modules are at the heart of all radar systems employing beam-steering phased-array antennas. These active phased-array radars (APARs) typically require solid-state T/R modules with high-output power, low-noise figure (NF), high third-order intercept (TOI), and sufficient gain in order to function properly […]

SMT 2-Way Combiner

The surface mount, 2-way in-phase combiner/divider, Model D9888, is a high power design that covers the full 1000 to 3000 MHz band, and is rated at 500W CW. Operating with less than 0.35 dB insertion loss, the unit is compact, measuring just 2.8 x 2.2 x 0.27”, and supplies full port-to-port isolation of 15 dB […]

Tunable Differential Limiter

The DLM-10SM is a tunable, dual channel GaAs Schottky diode signal limiter featuring excellent IP3, insertion loss, and return loss. The limiting level is adjustable with an off-chip bias network, and the two channels can be used for differential or single-ended signals. It is available in a lead-free, RoHS compliant QFN surface mount package and […]

BNC to F Impedance Matching Pad

Impedance matching pads eliminate impedance discontinuity (mismatches) without introducing reflection to the circuit. Model 854-879-FM3 is a 50 to 75 ohm impedance matching pad. The 1W unit features 5.7 dB nominal insertion loss and 1.50:1 maximum VSWR. The connector configuration is 50 ohm BNC female, 75 ohm F male, and the operating frequency range is […]

Modular Opto-Electronic Network Analyzer

The ME7848A Opto-electronic Network Analyzer (ONA) system is a flexible solution integrating the VectorStar® vector network analyzer (VNA) with an O/E calibration detector and E/O converters that conduct cost-effective E/O, O/E, and O/O measurements on optical devices operating at 850 nm, 1310 nm, and 1550 nm. Incorporating a modular approach, the ME7848A provides engineers with […]

SP16T Absorptive Switch

Model P16T-100M50G-100-T-DEC is a SP16T absorptive switch that operates from 0.1 to 50.0 GHz. This model offers a typical insertion loss of 16 dB while maintaining a typical isolation of 70 dB. It operates at 20 dBm CW, 100 ns switching speed, and is controlled with TTL logic. Size is 12.00 x 5.50 x 0.65”. […]

Advanced Multiprotocol SoC

The nRF52833 advanced multiprotocol System-on-Chip (SoC) is an ultra low power Bluetooth® Low Energy (Bluetooth LE), Thread, Zigbee, and 2.4 GHz proprietary wireless connectivity solution that includes a Bluetooth 5.1 Direction Finding-capable radio and is qualified for operation across a -40 to +105ºC temperature range.  NORDIC SEMICONDUCTOR (3)

High Band Direction Finding Module

Model HBDFM-218-BD-DP is a high band direction finding module that covers 2.0 to 18.0 GHz. This uni-directional, multi-function device routes the signal present at the RF input connector through one of its four channels to the RF output connector to amplitude modulate the input signal. PLANAR MONOLITHICS IND. (4)

High Power Attenuators

A new line of 10, 25, 50, and 100W RF attenuators has operating frequencies up to 18 GHz, depending on the configuration, and peak power rating of 500W. The 10 and 25W versions feature bi-directional operation, while the 50 and 100W models support directional operation. VSWR is as low as 1.2:1.    PASTERNACK (4)

Rohde & Schwarz and Decawave Cooperate to Develop T&M Capabilities for Ultra Wideband Technologies

 The test and measurement equipment expert Rohde & Schwarz and the UWB technology expert Decawave have jointly developed test and measurement capabilites for production line testing of UWB functions in chipsets and complete devices. As part of the cooperation, Decawave provided knowledge of the required test strategy and test methods, as well as the Decawave DW3000 […]