A Push-Push Oscillator Using Coupled Microstrip Lines in Common Feedback Loop

Author

Tanaka, Takayuki ; Ueyama, Mitsuhiro ; Aikawa, Masayoshi

Author_Institution

Saga Univ., Saga

fYear

2007

fDate

15-16 Nov. 2007

Firstpage

137

Lastpage

140

Abstract

In this paper, a push-push oscillator using coupled microstrip lines is presented. The usual coupled microstrip lines are formed in the common part of the positive feedback loops. Due to the odd mode transmission in the coupled microstrip line, the phase difference of pi is achieved between the fundamental frequency signals of the two feedback loops. In the experiment, the output power of -2.8 dBm at the second harmonic frequency of 16.0 GHz is obtained. The measured phase noise is -93.0 dBc/Hz at 1 MHz offset frequency. By using the coupled microstrip lines, the push-push oscillation has been achieved successfully.

Keywords

microstrip lines; microwave oscillators; common feedback loop; coupled microstrip lines; frequency 16.0 GHz; frequency signals; odd mode transmission; positive feedback loops; push-push oscillator; second harmonic frequency; Couplings; Feedback loop; Frequency measurement; Microstrip components; Noise measurement; Oscillators; Phase measurement; Phase noise; Power generation; Power system harmonics; coupled microstrip line; odd-mode transmission; push-push oscillator;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2007. KJMW 2007. Korea-Japan

Conference_Location

Okinawa

Print_ISBN

978-1-4244-1556-4

Type

conf

DOI

10.1109/KJMW.2007.4402259

Filename

4402259