A 24-GHz power-efficient MMIC pulse oscillator for UWB radar applications
✍ Scribed by Deokhwan Kim; Dong-Wook Kim; Songcheol Hong
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 341 KB
- Volume
- 49
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Abstract
A 24‐GHz power‐efficient pulse oscillator for ultrawideband (UWB) radar applications implemented with InGaP HBT MMIC technology is proposed. The oscillator uses a common base inductive feedback topology without output buffers. The bias current is switched on by a pulse‐control voltage. The oscillator consumes power only when the 24‐GHz pulse is generated, allowing high power efficiency to be obtained. A high output power of 8 dBm and a low phase noise of −120 dBc/Hz at 1 MHz offset frequency are obtained in continuous wave (CW) mode. While in pulse‐mode operation, the oscillator shows a 1‐ns pulse width with only 5 ps of phase jitter. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 1412–1415, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22456