A low local oscillator power K-band mixer based on tunneling diodes
✍ Scribed by Iacopo Magrini; Alessandro Cidronali; Gianfranco Manes
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 244 KB
- Volume
- 51
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Abstract
In this article, we will demonstrate a low local oscillator (LO) power K‐band mixer based on a tunneling diode technology. Due to its unique diode characteristics, no DC supply is needed, whereas an LO power as low as −2 dBm is required for nominal functionality. The energy‐efficient MMIC prototype integrates a pair of heterojunction interband tunnel diodes and a 90° coplanar broadband coupler. The prototype is optimized within the 19–26 GHz band, with an IF ranging from zero to 7 GHz. In addition, when compared with other mixers, it has the lowest LO power requirement with a conversion loss ranging from 6 to 10 dB, an input compression point of −3 dBm and an intercept 2nd and 3rd order intermodulation point of 22 and 12 dBm, respectively. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 1140–1143, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24228