Test & Measurement

Precision RF & microwave components for spectrum analyzers, signal generators, network analyzers, and OTA test systems

Precision is the foundation of progress. UMS provides RF and millimeter-wave technologies that enable the most demanding test and measurement applications. From laboratory instrumentation to portable field systems, our components are trusted by leading equipment manufacturers worldwide for their accuracy, robustness, and innovation.

Our solutions span the full frequency spectrum - from DC to 110 GHz - supporting applications such as spectrum analyzers, signal generators, vector network analyzers, over-the-air (OTA) measurement systems, and automated production test equipment.

Application Scenarios

Spectrum Analyzers

Modern spectrum analyzers require low-noise amplifiers (LNAs) with exceptionally low noise figures and wide instantaneous bandwidth to capture weak signals with high fidelity. UMS LNAs covering 0.1-110 GHz deliver noise figures as low as 1.2 dB, enabling accurate spectrum monitoring and signal analysis in both laboratory and field environments.

Key UMS products: CHA2069-QDG (18-44 GHz LNA), CHA3093-QDG (50-75 GHz LNA), CHA2249-QAG (75-110 GHz LNA)

Signal Generators & VCOs

High-purity signal generation is critical for calibration and testing of RF systems. UMS voltage-controlled oscillators (VCOs) and phase-locked loop (PLL) chips provide excellent phase noise performance and wide tuning ranges, making them ideal for signal generator front-ends and local oscillator (LO) chains in test equipment.

Key UMS products: CHV2010a (8-24 GHz VCO), CHV2240-SPG (37-42 GHz VCO), CHA2080-QDG (multiplier + amplifier)

Vector Network Analyzers (VNAs)

VNAs require highly linear, wideband components for both source and receiver chains. UMS variable gain amplifiers (VGAs) and wideband LNAs provide the linearity and bandwidth needed for accurate S-parameter measurements from MHz to E-band (71-86 GHz). Southwest 1.0mm and 1.35mm precision connectors ensure minimal reflection in VNA test ports.

Key products: UMS wideband VGAs, Southwest 1.0mm/1.35mm test port cables and adapters

Over-the-Air (OTA) Test Systems

5G and satellite communication OTA test systems require millimeter-wave components with excellent phase stability and gain consistency. UMS E-band and W-band MMICs, combined with Southwest precision end-launch connectors and low-loss cable assemblies, enable accurate OTA chamber measurements for antenna pattern verification and TRP/TIS testing.

Key products: UMS E-band (71-86 GHz) and W-band (75-110 GHz) transmit/receive modules, Southwest end-launch connectors

Automated Production Test

High-volume production test of RF devices demands robust, repeatable performance. UMS MMICs qualified to industrial temperature ranges, paired with Southwest high-reliability (Hi-Rel) connectors certified to MIL-STD-348, provide the reliability needed for ATE (automated test equipment) interfaces and RF probe card applications.

Key products: UMS industrial-grade MMICs, Southwest Hi-Rel SMA and SMP series connectors

Calibration & Reference Standards

Precision calibration standards are essential for maintaining measurement accuracy. Southwest Microwave's NIST-traceable calibration kits, including open/short/load/thru (OSL/T) standards for 1.0mm, 1.35mm, 1.85mm, 2.4mm, and 2.92mm interfaces, ensure accurate VNA calibration from DC to 110 GHz.

Key products: Southwest calibration kits for all precision connector series, T-check standards