Ducommun

Ducommun millimeterwave subsystem products include standard and custom-built modules or sub-assemblies.

Our self-contained, in-house components design and fabrication capacities ensure the breadth of sub-assemblies offered from rapid prototyping and proof of concept to full production. Ducommun has produced many high performance millimeterwave band sub-assemblies for commercial and military system applications. Among them, the K and Ka band directional Doppler Radar front ends are in production. Several hundreds of sets have been delivered. In addition, Ducommun has delivered Ka through W band engineering prototypes for plasma detection system, automotive Radar, speed Radar, automatic test set, radio telescope, missile terminal guidance, telecommunication system etc. applications.

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	SRF - Doppler Sensor Heads	SRF series Single and Dual Channel Doppler Sensor Heads are designed for long range motion/speed/directional detection where the sensitivity is essential. The sensors are constructed with a high performance horn antenna or horn-lens antenna, a linear to circular polarizer and T/R diplexer, a balanced mixer (I/Q mixer for dual channel version) and a high performance Gunn diode oscillator or dielectric resonator oscillator/multiplier chain. The low 1/f noise mixer diodes and high performance oscillator enhance Doppler detection at low IF frequency and circular polarization waveform improves reception ability for various Radar targets. The sensors are offered with single or dual channel version. The dual channel version provides target moving direction (approaching or receding) information of the target while detecting speed. Standard products are offered at 24.15 GHz, 35 GHz and 76.5 GHz, while other frequency bands are available upon request.
	SSA - Radar Target Simulators	SSA series Radar target simulators is a single side band (SSB) modulators, which can simulate the moving Radar target for Doppler Radar system testing. The simulator can eliminate expensive and time consuming field test for most Doppler/speed Radar manufacturers. The modulators are available in major Doppler Radar frequency bands, such as K band (24.15 GHz), Ka band (35 GHz), V band (60 GHz), and W band (77 GHz and 94 GHz). The simulators are capable of simulating the forward and backward moving target by varying the relative phase of I and Q channel audio input signals, the speed of the target by adjusting the audio input frequency and the size and/or distance of the target by adjusting the attenuator value. The existing product specifications are illustrated as following. Other frequency bands are available up request.
	SMD - Motion Detector Modules	SMD series K band Motion Detector Modules are designed for short-range motion/speed detection where the cost is essential. The modules are constructed with a T/R diplexer, a single ended mixer and a frequency and power adjustable Gunn diode oscillator. The module uses the low cost die-cast housing to further reduce the manufacturing cost while maintain a ridged mechanical configuration. The integrated design offers compact size and ease system integration. The dual channel version is available per request.
	SRR - Ranging Sensor Heads	SRR series ranging sensor heads are designed for long range distance detection where the sensitivity is essential. The sensors are constructed with a high performance horn antenna or horn-lens antenna, a linear to circular polarizer and T/R diplexer, a balanced mixer and a high performance varactor tuned Gunn oscillator or dielectric resonator VCO/multiplier chain. The low 1/f noise mixer diodes and high performance oscillator enhance the detection sensitivity at low IF frequency and circular polarization waveform improves reception ability for various Radar targets. The standard models are offered with single channel output and the dual channel version are available per request. Standard products are offered at 24.15 GHz, 35.0 GHz and 76.5 GHz, while other frequency bands are available upon request.
	SFE - Frequency Extenders	SFE series of frequency extenders combine high performance millimeterwave amplifiers, passive or active multipliers and filters to extend the low frequency sweepers, such as HP 83550 B or Agilent 83751B, to extreme clean and low cost millimeterwave sources. The frequency extenders cover the output frequency range of 26.5 to 110 GHz in six waveguide bands. The typical input power for these standard units are rated at + 10.0 dBm while the output power is up to 20 dBm. The SMA (F) coaxial connector is equipped for input and standard waveguide for output interface. The dimension of the standard products is measured as 3.75í¦ (W) x 4.00í¦ (L) x 1.75í¦ (H).
	SSS - Sub-assemblies	WiseWave Technologies, Inc. understands customers needs. WiseWave not only supplies the standard and custom made components and modules, but also understands the importance of providing engineering design and service to its customers. WiseWave's self-contained, in-house components design and fabrication capacities ensured the breath of sub-assemblies offer from rapid prototyping and proof of concept to full production. WiseWave has produced many high performance millimeterwave band sub-assemblies for commercial and military system applications. Among them, the K and Ka band directional Doppler Radar front ends are in production. More than 500 sets have been delivered. In addition, WiseWave has delivered Ka through W band engineering prototypes for plasma detection system, automotive Radar, speed Radar, automatic test set, Radio Telescope, Missile terminal guidance, telecommunication system etc. applications. WiseWave is approved to be a company who can not only supply high performance catalog products, but also realize a concept into the hardware with State-of-the-art performance prototypes and cost effective volume production.
	SNA - Scalar Network Analyzer Extenders	SNA series of scalar network extenders combine high performance millimeterwave amplifiers, passive or active multipliers, filters, Faraday isolators, direct reading attenuator, high directivity directional couplers and high sensitive detectors to extend the low frequency scalar network analyzers, such as HP 8756A or HP 8757A to low cost millimeterwave scalar network analyzers. The scalar network analyzers cover the output frequency range of 26.5 to 110 GHz in six waveguide bands. The typical input power required for these standard units are + 10.0 dBm while the dynamic ranges of these extenders for insertion loss are 30 to 50 dB and return
	SRU - Doppler Ranging Sensor Heads	SSRU series ranging sensor heads are designed for long range distance detection where the sensitivity is essential. The SRU series ranging sensors are used for moving target (where Doppler shift is presented) distance detection. The technology key is to utilize a single side band up-converter (modulator) to generate a second frequency in addition to its master frequency. By comparing the returned signals from the target caused by these two frequencies, the ranging (distance) information of the target can be extracted.
	SNG - Noise Figure and Gain Test Set	The SNG Series of noise figure and gain test sets are configured to provide automatic noise and gain measurement of amplifiers or receivers in the frequency range of 26.5 to 140 GHz in seven overlapping waveguide bands. These test sets combine high performance broadband solid state noise sources with full waveguide band down converters (STS Series) extending the Agilent 8970A/B noise figure meters to the millimeterwave frequency range. A signal generator with output frequencies from 8 to 20 GHz, such as an Agilent 8350B/83550A or 83751B is required by the down converter unit as an LO. The standard models have SMA (F) coaxial connectors for the LO input and IF output ports of the down converters with a standard waveguide for the DUT (Device Under Test) RF input port.