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- Title
Improvement in an H-plane nonreciprocal ferrite phase shifter via loading dielectric slabs.
- Authors
Che, W.; Yung, E. K. N.; Wen Junding
- Abstract
A technique is introduced to improve the performance of H-plane nonreciprocal ferrite phase shifters. This technique effectively combines dielectric loading on the H- and E-planes of the device. To determine the effect of dielectric loading qualitatively, a numerical analysis is carried out using the finite-element method (FEM). The method uses the magnetic vector and electric scalar potentials, which is proven to be very beneficial for eliminating a large number of spurious modes. Experimental verification of the theoretical predictions is established, and it indicates that dielectric loading in the H-plane can increase the differential phase shift of the device significantly. Furthermore, dielectric loading in the E-plane of the device is not only helpful to improve the heat-conducting characteristic of the device, but also is beneficial to increase the differential phase shift of the device, which makes it possible to fabricate devices with wideband and higher average power. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 28: 330–333, 2001.
- Subjects
PHASE shifters; FERRITES; BROADBAND communication systems; DIELECTRICS; VECTOR analysis
- Publication
Microwave & Optical Technology Letters, 2001, Vol 28, Issue 5, p330
- ISSN
0895-2477
- Publication type
Article
- DOI
10.1002/1098-2760(20010305)28:5<330::AID-MOP1033>3.0.CO;2-8