A Family of Four Monolithic VCO MIC's Covering 2-18 GHz

Four GaAs monolithic voltage controlled oscillator chips were designed and fabricated which cover the 2-4 GHz, 4-7 GHz, 7-12 GHz, and 12-18 GHz bands. Minimum output power of the four bands was +12 dBm in the 12-18 GHz band with a maximum output power of +20 dBm in the 7-12 GHz band. Typical power flatness was +-5 dBm in any band. The monolithic chips include a FET, two varactors, gate and source inductors, bypass capacitors, and bias resistors. The paper will discuss design considerations and performance.