Title :
A 40 GHz-band fully monolithic VCO with a one-wave length microstrip resonator for accurate oscillation frequency
Author :
Ikematsu, H. ; Kawakami, K. ; Katoh, T. ; Itoh, K.
Author_Institution :
Mitsubishi Electr. Corp., Hyogo, Japan
Abstract :
A 40 GHz-band fully monolithic VCO with a one-wavelength microstrip resonator (MSR) associated with a dumping resistor is presented. Employing a one-wavelength MSR, high setting accuracy of oscillation frequency can be obtained, and it is a very effective method to improve yield of millimeter wave MMIC oscillator. Also the one-wavelength MSR with a dumping resistor is proposed for suppression of parasitic oscillation. In analytical approach, variation of oscillation frequency is less than 150 MHz over C/sub gs//C/sub ds//C/sub dg/ variation of /spl plusmn/10% in worst case. The measured VCO tuning range is 493 MHz and it is much wider than the variation of oscillation frequency caused by process variations.
Keywords :
HEMT integrated circuits; MMIC oscillators; field effect MIMIC; microstrip circuits; microstrip resonators; millimetre wave oscillators; voltage-controlled oscillators; 40 GHz; 493 MHz; dumping resistor; fully monolithic VCO; millimeter wave MMIC oscillator; one-wavelength microstrip resonator; oscillation frequency; parasitic oscillation; setting accuracy; tuning range; Circuit optimization; Frequency; Inverters; Microstrip resonators; Millimeter wave communication; Millimeter wave radar; Millimeter wave technology; Resistors; Tuning; Voltage-controlled oscillators;
Conference_Titel :
Microwave Symposium Digest, 2002 IEEE MTT-S International
Conference_Location :
Seattle, WA, USA
Print_ISBN :
0-7803-7239-5
DOI :
10.1109/MWSYM.2002.1011762
