Development of EQM (engineering qualified model) local oscillator for KA-band satellite transponder

✍ Scribed by Keun-Kwan Ryu; Moon-Que Lee; In-Bok Yom; Seong-Pal Lee

• Publisher: John Wiley and Sons
• Year: 2003
• Tongue: English
• Weight: 503 KB
• Volume: 40
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/mop.11327

✦ Synopsis

Abstract

A low‐phase‐noise engineering qualified model (EQM) local oscillator (LO) has been developed for a Ka‐band satellite transponder. A voltage controlled dielectric resonator oscillator (VCDRO) is designed using a high‐impedance inverter coupled with a dielectric resonator to improve the phase‐noise performances. This EQM LO was made as an environmental experiment for space application and applied to a Ka‐band satellite transponder of the EQM level. The LO has harmonic suppression characteristics above 53 dBc and output power of 14.0 dBm ± 0.17 dB over the temperature range of −15–+65°C. The phase noise characteristics are exhibited as −102.33 dBc/Hz at 10 KHz and −114.33 dBc/Hz at 100‐KHz offset frequencies, respectively. © 2004 Wiley Periodicals, Inc. Microwave Opt Technol Lett 40: 198–200, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.11327