A 94 GHz low-cost frequency source using a 47 GHz micromachined air-cavity oscillator and a doubler
✍ Scribed by Sangsub Song; Youngmin Kim; Youngwoo Kwon; Kwang-Seok Seo
- Book ID
- 102519376
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 247 KB
- Volume
- 52
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Abstract
A 94 GHz low‐cost frequency source has been developed using a 47 GHz micromachined air‐cavity oscillator and a 47‐to‐94 GHz doubler on the thin‐film substrate with the flip‐chip interconnection. The 47 GHz micromachined air‐cavity oscillator is a parallel‐feedback configuration using the micromachined air‐cavity as a parallel‐feedback element. As active devices of the oscillator and the doubler, GaAs pseudomorphic high‐electron mobility transistors were flip‐chip mounted on the thin‐film substrate with integrated passives. The developed 94‐GHz frequency source has an output power of about 3 dBm and a low‐phase‐noise of −96 dBc/Hz at 1 MHz offset with an oscillation frequency at 94.25 GHz. This work allows a low‐cost millimeter‐wave frequency source. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 239–241, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24884