The W-band Avalanche Microstrip Integrated High Frequency Multiplier,

Millimeter-wave frequency multiplication technology is an important method to obtain high-qualified millimeter-wave signal. Avalanche diode has the high nonlinear inductance characteristic in avalanche process. Based on the fierce nonlinearity, Avalanche diode high-order multiplier can transform the microwave signal into millimeter-wave band in a single stage, which has many advantages such as simple circuit topology, high efficiency, high-level output power and avoids the impedance matching and filtering in multiplier chains. This high order multiplier can provide high-quality millimeter-wave signal source.The high-nonlinear model of avalanche diode including the avalanche region and draft region is studied. Based on the analysis of high-nonlinear inductance characteristic of avalanche diode, the input circuit, the bais circuit, gold wire bonding, output circuits and the whole circuit system are simulated and optimized by microwave softwares. Then the circuits are designed and tested carefully. At last, we have complicated the microstrip intergrated high-order frequency multiplier with excellent characteristic such as intergrated structure and miniaturization.The W-band microstrip integrated high-order multiplier with the novel circuit structure is accomplished successfully. It has good performance such as the maximum output power 5.87 mW, the multiplying efficiency is about 0.5%, the better phase noise is -90.83dBc/Hz@10kHz, as well as -95.67dBc/Hz@100kHz. Meanwhile, the high-order multiplier has effective output power at other harmonious multiplication order. This work has achieved the desired results and made some progress in the research on the nonlinear characteristic of avalanche diode.