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Analytical Design and Optimization of a WR-3 Waveguide Diplexer Synthesized using Direct Coupled Resonator Cavities
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
2017 (English)Report (Other academic)
Abstract [en]

A WR-3 coupled waveguide resonator diplexer is designed, analytically, using the insertion loss method, and subsequently simulated and optimized in HFSS. The design features ten iris coupled resonator cavities, assembled with a power divider in a T-junction topology. The diplexer channel filters yield a 5th order Chebyshev type frequency response, centered around 265 GHz and 300 GHz, respectivley. The resulting diplexer channels have bandwidths of 13 GHz and 11.6 GHz, respectivley, and a maximum passband return loss of -6.35 dB for channel A and -6.95 dB for channel B. A usable diplexer should have a passband return loss of at most -20 dB. Further optimization or, alternatively, changing the features of the design is needed to reduce the passband ripple to a level for which the diplexer is usable in practice. Possible improvements can be made by making the channel passbands narrower or, alternatively, increasing the number of resonators in the channel filters.

Place, publisher, year, edition, pages
2017. , p. 32
Keywords [en]
Diplexer, waveguide, WR-3, resonator, cavity, microwave, microwaves, RF, THz, terahertz, multiplexer, filter, band pass, HFSS, coupled resonators, millimeter wave
Keywords [sv]
vågledare, kavitet, mikrovågor, mikrovågsteknik
National Category
Other Physics Topics
Identifiers
URN: urn:nbn:se:uu:diva-314536OAI: oai:DiVA.org:uu-314536DiVA, id: diva2:1071162
Projects
THz MEMS systems (SSF)
Note

Project in Applied Physics, Uppsala University ("Projekt i tillämpad fysik", kurskod 1FA492)

Supervisor: Dragos Dancila, Department of Engineering Sciences, Solid State Electronics, Uppsala University

Examinator: Peter Jansson, Department of Physics and Astronomy, Applied Nuclear Physics, Uppsala University

Available from: 2017-02-22 Created: 2017-02-03 Last updated: 2017-02-27Bibliographically approved

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Citation style
  • apa
  • ieee
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  • Other style
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Language
  • de-DE
  • en-GB
  • en-US
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  • nn-NO
  • nn-NB
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  • Other locale
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Output format
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