Design and Fabrication of Voltage Control Oscillator at X-band using Dielectric Resonator

Han, Sok-Kyun; Choi, Byung-Ha

Journal of Navigation and Port Research 2003;27(5):513-517.
Published online December 31, 2003.

유전체 공진기를 이용한 X-band 전압제어 발진기 설계 및 제작

한석균, 최병하

Design and Fabrication of Voltage Control Oscillator at X-band using Dielectric Resonator

Sok-Kyun Han, Byung-Ha Choi

Abstract

In this paper, a VCDRO(Voltage Control Dielectric Resonator Oscillator) applied to X-band as stable source is implemented and constructed with a MESFET for low noise, a dielectric resonator of high frequency selectivity and high Q varactor diode to obtain a good phase noise performance and stable sweep characteristics. The designed circuits is simulated through the harmonic balance simulation technique to provide the optimum performance. The measured results of a fabricated VCDRO show that output is 2.22㏈m at 12.05㎓, harmonic suppression -30㏈c. phase noise -130㏈c at 100㎑ offset, and sweep range of varactor diode ±18.7㎒. respectively. This oscillator will be available to X-band application.

Key Words: VCDRO;DR;PHASE NOISE