Title :
Very broadband bipolar VCO
Author_Institution :
Teledyne Microwave, Mountain View, USA
Abstract :
A VCO tunable over a frequency range of 6.94 to 19.22 GHz in 20 V has been achieved by broadbanding a hyperabrupt varactor tuned bipolar oscillator. This was accomplished by introducing variable phase feedback in the form of a second hyperabrupt junction-varactor diode. The high operating frequency was attained by using a doubling mode circuit.
Keywords :
bipolar transistor circuits; gallium arsenide; microwave integrated circuits; microwave oscillators; varactors; variable-frequency oscillators; 6.94 to 19.22 GHz frequency range; GaAs; SHF; bipolar voltage controlled oscillator; broadband; broadbanding; doubling mode circuit; hyperabrupt junction-varactor diode; hyperabrupt varactor tuned bipolar oscillator; microwave integrated circuit; variable phase feedback;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19810608
