Ducommun

Ducommun's frequency converter families include waveguide detectors (FAS), passive and active multipliers (FMP and FMA), up and down converters (FUB and FDB), harmonic mixers (FDH), subharmonically pumped up and down converters (FUS and FDS) and phase detectors and single sideband modulators (FPB and FSS). These devices are offered in 7 waveguide bands to cover entire 18 to 110 GHz frequency spectrum. These converters employ high performance GaAs Schottky beamlead diodes and Ducommun's proprietary circuit configuration to produce superior performance, such as low conversion loss and up to full waveguide instantaneous operation bandwidth.

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FDB - Balanced Mixers FDB series balanced mixers are offered in 7 waveguide bands to cover frequency spectrums from 18 to 110 GHz. These mixers employ high performance GaAs Schottky beamlead diodes and balanced configuration to produce superior performance with a moderate LO pumping level. The mixers are designed for full RF waveguide band operation with extremely wide IF bandwidth. Better performance can be obtained by operating the mixers in narrower bandwidth. These mixers offer moderate port to port isolation, which is high enough for most applications to eliminate additional filtering requirement. These mixers are ideal candidates for test equipment, communication systems and Radar receivers where frequency down conversion is desired. FDB-E1 - Externally Biased Balanced Mixers It is always a concern at high millimeterwave band that there is not enough power to drive the mixer, especially full waveguide band. Model FDB-XX-E1 series externally biased, balanced mixers are especially developed for this purpose. The mixers are offered in 4 waveguide bands to cover frequency spectra from 50 to 140 GHz. These mixers employ high performance GaAs Schottky beamlead diodes and balanced configuration to produce superior performance with a very low LO pumping level. The mixers are designed for full RF waveguide band operation with extremely wide IF bandwidth. Better performance can be obtained by operating the mixers in narrower bandwidth. These mixers are ideal candidates for test equipment, communication systems and EW receivers where frequency down conversion is required. FDH - Harmonic Mixers FDH series harmonic mixers mixers employ high performance GaAs Schottky beamlead diode to produce superior performance with a moderate LO pumping level. The mixers are designed for full RF waveguide band operation with wide IF bandwidth. The LO and IF frequency range for standard models are 2 to 15 GHz and DC to 4 GHz, respectively. These harmonic mixers are designed for use with spectrum analyzers and frequency counters with built-in frequency diplexer. When used with external diplexer, these mixers can be used to phase lock the high frequency sources. The standard model equipped with SMA(F) connector for LO/IF port connection. FMA - Active Frequency Multipliers FMA series active multipliers utilize high performance GaAs Schottky beamlead diodes or discrete PHEMT devices and MMIC chips for frequency multiplication and amplification. The multipliers offer moderate conversion gain with output frequency covering 18 to 96 GHz in 6 waveguide bands. The X2, X3 and X4 are offered as standard multiplication factors. The input power requirement for these multipliers is +10 to +20 dBm. While SMA or K female coaxial connector is equipped for input and waveguide for output interface, WR-28 waveguide input is available as an option for V band doubler and W band tripler design. FMP - Passive Frequency Multipliers FMP series of passive frequency multipliers utilize high performance GaAs Schottky beamlead diodes and balanced configuration to produce an extremely broad bandwidth performance. The multipliers cover the output frequency range of 18 to 110 GHz with seven waveguide bands. The balanced design enhances either even or odd harmonics while suppressing unwanted odd or even harmonics. External bias is not required for ease system integration. The maximum input power for these standard units are rated at +23 dBm. While SMA or K female coaxial connector is equipped for input and waveguide for output interface, WR-28 waveguide input is available as an option for V band doubler and W band tripler design. FPB - I/Q Mixers or Phase Detectors FPB series I/Q mixers are offered in 7 waveguide bands to cover frequency spectrums from 18 to 110 GHz with 5 % minimum bandwidth. These mixers employ high performance GaAs Schottky beamlead diodes and balanced configuration to produce superior performance with moderate LO pumping level. The mixers are constructed with fully integrated 2 balanced mixers, 2 3-dB power splitters and phase shifters. These mixers offer high port to port isolation for most application without the requirement of additional filtering. These mixers are ideal candidates for critical distance measurement and specific modulation scheme in certain communication systems where phase information is required. FUB - Balanced Up-Converters FUB series balanced up-converters are offered in 7 waveguide bands to cover frequency spectrums from 18 to 110 GHz. These converters employ high performance GaAs Schottky beamlead diodes and balanced configuration to produce superior performance with a moderate LO pumping level. The converters are designed for full RF waveguide band operation with extremely wide IF bandwidth. Better performance can be obtained by operating the converters in narrower bandwidth. These converters offer moderate port to port isolation, which is high enough for most applications to liminate additional filtering requirement. The standard converters are offered as double sideband operation and signal sideband version can be realized by adding an optional low pass or band pass filter. These converters are ideal candidates for test equipment, communication systems, frequency extenders and Radar transmitters where frequency up conversion is desired. FSS - Single Sideband Modulator FSS series single sideband modulators are offered in 7 waveguide bands to cover frequency spectrums from 18 to 110 GHz with 5 % minimum bandwidth. These modulators employ high performance GaAs Schottky beamlead diodes and balanced configuration to produce superior performance with moderate LO pumping level. The modulators are constructed with fully integrated 2 balanced mixers, 2 3-dB power splitters and phase shifters. The modulators are internally phase matched and can be used as single sideband up-converters without adding external filter. The modulators are ideal candidates for test equipment, communication and Radar systems where the single sideband modulation is required. FAS - Broadband Amplitude Detector FAS series broadband waveguide detectors are offered in 7 waveguide bands to cover frequency spectrums from 18 to 110 GHz. These detectors employ high performance GaAs Schottky beamlead diodes and a proprietary circuit design to produce high sensitivity and broad bandwidth without external DC bias or mechanical tuning. The standard detectors are equipped with SMA (F) connector for video output and offered negative output voltage polarity for various applications. The matched pairs with similar sensitivity response cross the entire bandwidth are available. These detectors are idea devices where power detection or power monitoring is required. FDS - Subharmonically Pumped Mixers FDS series balanced subharmonically pumped mixers are offered in 7 waveguide bands to cover frequency spectra from 18 to 110 GHz. These mixers employ high performance GaAs Schottky beamlead diodes and balanced configuration to produce superior performance with a moderate LO pumping level. The mixers are designed for up to full RF waveguide band operation with wide IF bandwidth. Better performance can be obtained by operating the mixers in narrower bandwidth. The advantage to use subharmonically pumped mixers is their low LO frequency (½ RF frequency) characteristic, therefore, LO/RF frequency separation and their products treatment can be easily realized. In addition, lower LO frequency requirement will reduce system integration cost dramatically, especially, at higher millimeterwave frequency range. These mixers are ideal candidates for test equipment, communication systems and receivers where frequency down conversion is required. FUS - Subharmonically Pumped Up-converters FUS series balanced subharmonically pumped up-converters are offered in 7 waveguide bands to cover frequency spectra from 18 to 110 GHz. These up-converters employ high performance GaAs Schottky beamlead diodes and balanced configuration to produce superior performance with a moderate LO pumping level. The up-converters are designed for up to full RF waveguide band operation with wide IF bandwidth. Better performance can be obtained by operating the up-converters in a narrower bandwidth. The advantage to use subharmonically pumped up-converters is their low LO frequency (½ RF frequency) characteristic, therefore, LO/RF frequency separation and their products treatment can be easily realized. In addition, lower LO frequency requirement will reduce system integration cost dramatically, especially, at higher millimeterwave frequency range. These up-converters are ideal candidates for test equipment, communication systems and receivers where frequency up conversion is required.