Harmonics suppression of Wilkinson power divider using spurlines with adjustable rejection bands
✍ Scribed by Hai-Wen Liu; Zhiguo Shi; Ahmed Boutejdar; Reinhard H. Knoechel; Klaus F. Schuenemann
- Publisher
- John Wiley and Sons
- Year
- 2008
- Tongue
- English
- Weight
- 264 KB
- Volume
- 50
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Abstract
A newly asymmetrical spurline structure is presented in this article. Its dual‐bandgap characteristics are reported and can be adjusted by changing the length difference between spurlines. Then, a simple circuit model is set up for the spurline structure by using two LCR‐resonators and the circuit parameters can be extracted from EM simulations. Moreover, a Wilkinson power divider using the proposed spurlines was designed, fabricated, and measured. Experimental results verify that 27‐dB suppression for the second harmonic and 30‐dB suppression for the third harmonic are obtained, respectively. In addition, the reflection coefficients are −3.5 dB ± 0.3 dB (−3 dB for ideal case) below 3.8 GHz and −3.7 dB at the operating frequency 3.12 GHz. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 601–604, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23172