Test & Measurement

Signal Generators

The sky’s the limit for utilizing the higher ends of the electromagnetic (EM) spectrum.
Articles: Sensors/Data Acquisition
SDR Interface for the NeXtRAD Multistatic Radar System
Learn about the multistatic data that can be collected on maritime targets.
Articles: Communications
Multi-Agent RF Propagation Simulator

A desirable interface between multi-agents is through over-the-air RF connections that include not only the intended direct RF communications paths but also highly variable multi-ray propagation, range...

Lange Couplers

The construction and port orientation of the Lange Coupler from SemiGen (Londonderry, NH) makes it useful as both a power combiner and splitter for RF and...

Articles: RF & Microwave Electronics
An Integrated Framework for Complex Radar System Design

Modern radar systems are complex and depend heavily on advanced signal processing algorithms to improve their detection performance. At the same time, the radio front-end must meet...

Radio frequency (RF) circuit elements that are traditionally considered to be linear frequently exhibit nonlinear properties that affect the intended...

Unlike primary radars, Secondary Surveillance Radar (SSR) calculates the range and azimuth of a target, such as an aircraft, using a bidirectional communication link to gather...

As wireless standards become more complex, the number of operational modes for these devices increases exponentially. As progression continues to the latest WiFi standard,...

Molecules have internal motions that are characteristic of their structure and identity. These motions can be studied by spectroscopy in different regions of the...

Agilent Technologies (Santa Clara, CA) has introduced two microwave analog signal generators: the N5183B MXG and N5173B EXG. The MXG has phase noise of less than -124 dBc/Hz (at 10 GHz, 10 kHz offset). The...

In 2008, 4RF Communications started development of a new range of radio products to augment their existing point-to-point, long-range wireless link product....

Products: Test & Measurement
Arbitrary Waveform Generator

Geotest-Marvin Test Systems (Irvine, CA) has announced the GX1649 64-channel PXI arbitrary waveform generator with 16-bit amplitude resolution and an output voltage range of ±15 volts. It is suited for use in...

RFM Catchall: Test & Measurement
Testing Modern Radios

Several techniques are now being employed to ensure efficient communications across the chaotic radio spectrum. Chief among them is Software Defined Radio (SDR), which uses software to dynamically control communications...

Radio detection and ranging (RADAR) systems, as they were originally called, have blossomed into a wide array of indispensible equipment for...

Software Defined Radio (SDR) represents an important move forward for mobile and personal communications, promising a major...

Application Briefs: Test & Measurement
Spectrally Compliant Waveforms for Wideband Radar

Modern radars often require the use of wideband waveforms to perform high-resolution target imaging. In microwave systems, the bandwidth can be on the order of 1.5 GHz, while in UHF systems...

Products: Test & Measurement
16-Bit Data Acquisition Board

Pentek, Inc. (Upper Saddle River, NJ) has added the Model 71662 four-channel, 200 MHz, 16-bit data acquisition board with built-in digital down converters (DDCs) to its popular Cobalt® family of Xilinx Virtex-6...

Products: Test & Measurement
Vector Signal Generators and Analyzers

National Instruments (Austin, TX) offers the NI PXIe-5663E 6.6-GHz, 2-, 3-, and 4-channel RF vector signal analyzers (VSA) and NI PXIe-5673E 6.6-GHz, 2-, 3-, and 4-channel RF vector signal generators...

Products: Test & Measurement
Microwave Signal Generators

The 2500B series of microwave signal generators from Giga-tronics (San Ramon, CA) covers 100 kHz to 50 GHz with low phase noise, high rejection of harmonics, sub-harmonics, and spurious, high output power level....

Briefs: Test & Measurement
Delta-Sigma UHF Digital Waveform Generator

A prototype Digital Waveform Generator (DWG) in the ultra-high-frequency (UHF) range uses Delta-Sigma (Δ−Σ) modulation techniques, which permit arbitrary and accurate waveform...

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