Design of Coupled Oscillator Arrays for Second Harmonic Radiation

Author

Georgiadis, Apostolos

Author_Institution

Telecommun. Technol. Center of Catalonia, Castelldefels

fYear

2007

fDate

3-8 June 2007

Firstpage

1727

Lastpage

1730

Abstract

A design method for phased arrays based on coupled oscillators, radiating the second harmonic is proposed. The oscillators are coupled at the fundamental frequency, and radiation of the second harmonic allows for extended scanning range. A model of the array steady state is developed based on a first order perturbation of the free-running single element steady state, taking into account both harmonics. Stability analysis based on the two harmonic model is also performed. The model parameters can be easily calculated from a harmonic balance analysis of the single array oscillator element only. The proposed methodology is applied to the design of a three element active antenna oscillator array radiating the second harmonic at 8.6 GHz.

Keywords

antenna phased arrays; harmonics; oscillators; coupled oscillator arrays; first order perturbation; free-running single element; frequency 8.6 GHz; fundamental frequency; harmonic balance analysis; phased arrays; second harmonic radiation; three element active antenna oscillator array; Admittance; Antenna arrays; Design methodology; Eigenvalues and eigenfunctions; Frequency; Harmonic analysis; Oscillators; Phased arrays; Stability analysis; Steady-state; Active antennas; coupled oscillator arrays; harmonic balance; phased arrays;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium, 2007. IEEE/MTT-S International

Conference_Location

Honolulu, HI

ISSN

0149-645X

Print_ISBN

1-4244-0688-9

Electronic_ISBN

0149-645X

Type

conf

DOI

10.1109/MWSYM.2007.380061

Filename

4264186