Computer-aided design of inductively coupled rectangular waveguide filters including tuning elements
✍ Scribed by V. E. Boria; M. Guglielmi; P. Arcioni
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 282 KB
- Volume
- 8
- Category
- Article
- ISSN
- 1096-4290
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✦ Synopsis
In this paper we first describe a CAD tool for rectangular waveguide filters with tuning elements based on a multimode network representation. The equivalence between tuning elements of circular and square cross section is then investigated. Next we discuss the CAD of a tunable filter to be used over a given frequency range. Finally, measured performances are presented for two types of implementation. The first is a filter structure in which the required frequency of operation is easily changed by replacing its top cover, without affecting the filter bandwidth. The second is a traditional implementation using manually adjusted tuning screws. Measured and simulated results are shown to be in good agreement, thereby fully confirming the validity of the CAD tool described.