✦ LIBER ✦
Ladder-type filter based on bulk acoustic wave resonators with improved out-of-band rejection
✍ Scribed by J. Verdú; O. Menéndez; P. de Paco
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 251 KB
- Volume
- 50
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Abstract
Filters based on bulk acoustic wave (BAW) resonators are called to replace actual surface acoustic wave filters. The transmission response of BAW‐based ladder‐type filters presents a steep rejection near the passband, but a poor out‐of‐band (OoB) rejection. This article describes how modifying the basic configuration of this type of filters, its OoB rejection can be improved. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 103–107, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23015