Ducommun

Ducommun’s oscillator family includes FET based dielectric resonator oscillators (OFD), phase locked oscillators (OPL), Gunn diode based low cost Gunn oscillators (OGL), bias tuned Gunn oscillators (OGB), mechanically tuned oscillators (OGM), varactor tuned Gunn oscillators (OGV), injection locked Gunn oscillators (OGI) and Gunn oscillator bias regulators and modulators (OGR and OMR). In the mechanically tuned Gunn oscillator family, the ultra broadband series (OGF) delivers up to full waveguide tuning bandwidth.

Ducommun is the industry leader of design and manufacturing high performance Gunn diode oscillators. Combined with proprietary cavity design technology and experience, Ducommun's Gunn oscillators deliver state-of-the-art performance in the industry. In addition, Ducommun has delivered more than 20,000 high performance Gunn oscillators since March 2001.

Contact Ducommun for your specific Gunn Oscillator requirement.

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	OGF - Mechanically Tuned, Full Band Gunn Oscillators	OGF Series Gunn oscillators are near full waveguide band mechanically tuned Gunn oscillators. The oscillators combine proprietary circuit design capability and experience with either GaAs or InP Gunn diode to cover the frequency range of 18 to 110 GHz in seven waveguide bands. The oscillators are especially designed for high output power, full waveguide band mechanical tuning range, bias tuning ability and low AM/FM noise characteristics. The standard oscillators are equipped with a micrometer driver, which enables convenient frequency tuning and reliable frequency resetting. Unlike many other competitorsÆ products, these oscillators are equipped with a single mechanical tuner, which eases frequency and power control. The oscillator can be converted to an electrical/mechanical-tuned oscillator by replacing micrometer with an electrical driven motor.
	OGI - Injection Locked Gunn Diode Oscillators	OGI series CW injection-locked Gunn oscillators are alternatives to HEMT device and IMPATT diode based stable amplifiers, especially at high millimeterwave frequencies. The operating frequency and power output of these oscillators are up to 110 GHz and 24 dBm. The spectrum purity of the output signal is injected signal dependent. There is an output free running signal in the absence of an input injection signal. The oscillators are provided with integral circulators and optional DC voltage regulator. An optional heater is provided to achieve better temperature stability. For higher gain, broader locking bandwidth and higher output, multi-stage and multi-diodes configurations are used.
	OGL - Low Cost K and Ka Band Gunn Diode Oscillators	OGL Series K and Ka band Gunn diode oscillators are especially designed for low cost commercial applications. Unlike most manufacturersÆ products, these oscillators are made of high performance devices and machined aluminum cavities. Due to extremely high external Q and temperature compensation mechanism, these oscillators exhibit higher frequency and power stability, lower phasenoise and higher anti-load-pulling abilities. The oscillators are ideal candidates for the applications suchas Police Speed Radar Gunn and Doppler Sensors, where low close-in phase noise is required.
	OGM - Mechanically Tuned Gunn Diode Oscillators	OGM Series mechanically tuned Gunn oscillators combine proprietary circuit design capability and experience with either GaAs or InP Gunn diode to cover the frequency range of 18 to 110 GHz in seven waveguide bands. The oscillators are especially designed for high output power, wide mechanical tuning range, bias tuning ability and low AM/FM noise characteristics. The standard oscillators are equipped with a micrometer driver, which enables convenient frequency tuning and reliable frequency resetting. The oscillators are ideally suited for bench test sources, while a self-locking screw can be provided instead of micrometer driver for system integration. The oscillators can be supplied with optional integrated isolator, voltage regulator and temperature heater. While waveguide is standard interface, the oscillators are available with coaxial interface as an option.
	OGR - Gunn Oscillator Bias Regulator	OGR and OMR series Gunn oscillator bias regulator and regulator/modulator are developed as a low noise DC regulator/ modulator for Gunn diode oscillators. The OGR regulator and OMR regulator/modulator supplies well regulated, low noise DC voltage to Gunn oscillators. This feature enhances Gunn oscillator signal purity and also provides protection against destructive over-voltage to the Gunn diode. The OMR regulator/modulator features internal or external AM or FM modulation capabilities. The internal modulation rate is 1 KHz and external modulation rate is from DC and up to 1 MHz. This feature allows phase locking the Gunn oscillator to a microwave source-locking counter via bias voltage.
	OMR - Gunn Oscillator Bias Regulator & Modulator	OGR and OMR series Gunn oscillator bias regulator and regulator/modulator are developed as a low noise DC regulator/ modulator for Gunn diode oscillators. The OGR regulator and OMR regulator/modulator supplies well regulated, low noise DC voltage to Gunn oscillators. This feature enhances Gunn oscillator signal purity and also provides protection against destructive over-voltage to the Gunn diode. The OMR regulator/modulator features internal or external AM or FM modulation capabilities. The internal modulation rate is 1 KHz and external modulation rate is from DC and up to 1 MHz. This feature allows phase locking the Gunn oscillator to a microwave source-locking counter via bias voltage.
	OGV - Varactor Tuned Gunn Diode Oscillators	OGV series varactor tuned Gunn oscillators combine proprietary circuit design capability and experience with either GaAs or InP Gunn diode to cover the frequency range of 18 to 110 GHz in seven waveguide bands. The oscillators are especially designed for high output power, wide varactor tuning range, mechanical tuning ability and low AM/FM noise characteristics. The DC power is applied via a low pass EMI filter, while a female SMA connector is utilized for the varactor tuning voltage. The tuning rate can be as high as 50 MHz. The oscillators are ideally suited for FMCW transceivers, AFC loops and phase locked systems. The oscillators can be supplied with an optional integrated isolator, voltage regulator and temperature heater. While waveguide is standard interface, the oscillators are available with coaxial interface as an option. The operating temperature range is 0 to +50°C.
	OGB - Bias Tuned Gunn Oscillators	OGB Series bias tuned Gunn oscillators combine proprietary circuit design capability and experience with either GaAs or InP Gunn diode to cover the frequency range of 18 to 140 GHz in 9 waveguide bands. The oscillators are especially designed for high output power, fast bias tuning ability and low AM/FM noise characteristics. The standard models are equipped with feedthru pin for bias port, while a SMA (F) connector can be specified at the time of order for better EM shielding. The oscillators can be supplied with optional integrated isolator, OMG Gunn oscillator modulator/regulator and temperature heater. Combined with the OMR Gunn oscillator modulator/regulator, the bias-tuning characteristic of the oscillator can be enhanced without additional circuitry. The benefit of utilizing bias tuned Gunn oscillator includes better linearity and higher power output compared with its counter part, Varactor Tuned Gunn oscillator (OGV). While waveguide is the standard interface, the oscillators are available with coaxial interface as an option.
	OPL - Phase Locked Oscillators	OPL series phase-locked oscillators are offered to cover frequency range up to 110 GHz by utilizing high performance FET oscillators, Gunn oscillators or multiplier/amplifier chain to produce desired frequency and power output. The phase locked oscillators are offered with either internal or external referenced version. The phase noise of an externally referenced phase locked oscillator is depended on the quality of the reference signal.
	OFD - Dielectric Resonator Oscillators	OFD dielectric resonator stabilized oscillators cover the frequency range of 5 to 26.5 GHz. The oscillators utilize state of the art MIC and FET devices technology to provide highly stable, reliable and efficient signal sources. Each oscillator has an internal voltage regulator to provide regulated bias and over-voltage protection. Standard units are rated over 0 to +50 C operating temperature range. Standard products incorporate a screw tuner with a reliable self-locking feature to provide small mechanical frequency tuning. SMA or K female coaxial connector is equipped for standard RF interface. The electrical tunable dielectric resonator oscillators are offered as non-standard units. Consult factory for technical information regarding this choice.
	ONS - Millimeterwave Solid State Noise Sources	The ONS Series of solid state noise sources cover full waveguide bands. The noise sources offered cover the frequency range of 26.5 to 170 GHz in eight overlapping waveguide bands. The noise sources utilize a silicon IMPATT diode to provide a stable 15 dB typical ENR. The bias voltage and current for the noise source are +28 Vdc at 60 mA typical, which is compatible with the Agilent 8970A/B noise meters. The standard noise sources are supplied with a full band Faraday isolator. While waveguide is the standard interface, the noise sources are also available with a coaxial interface by using the appropriate WiseWave PTC series waveguide to coax adapter up to 110 GHz.