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High-Performance Compact Diplexers for Ku/K-Band Satellite Applications.
- Source :
- IEEE Transactions on Microwave Theory & Techniques; Oct2017, Vol. 65 Issue 10, p3866-3876, 11p
- Publication Year :
- 2017
-
Abstract
- In this paper, two novel compact diplexers for satellite applications are presented. The first covers the Ku-band with two closely spaced channels (Ku-transmission band: 10.7–13 GHz and Ku-reception band: 13.75–14.8 GHz). The second is wider than the first (overall bandwidth up to 50%) achieves the suppression of the higher order modes, and covers the Ku/K-band with a reception channel between 17.2 and 18.5 GHz. Both diplexers are composed of two novel bandpass filters, joined together with an E-plane T-junction. The bandpass filters are designed by combining a low-pass filtering function (based on $\lambda $ /4-step-shaped band-stop elements separated by very short waveguide sections) and a high-pass filtering structure (based on the waveguide propagation cutoff effect). The novel diplexers show a very compact footprint and very relaxed fabrication tolerances, and are especially attractive for wideband applications. A prototype Ku/K-band diplexer has also been fabricated by milling. Measurements show a very good agreement with simulations, thereby demonstrating the validity and manufacturing robustness of the proposed topology. [ABSTRACT FROM PUBLISHER]
Details
- Language :
- English
- ISSN :
- 00189480
- Volume :
- 65
- Issue :
- 10
- Database :
- Complementary Index
- Journal :
- IEEE Transactions on Microwave Theory & Techniques
- Publication Type :
- Academic Journal
- Accession number :
- 125562719
- Full Text :
- https://doi.org/10.1109/TMTT.2017.2691773