Simple surface-wave launching by parallel-plate and microstrip feeding for leaky-wave antennas and other planar guided-wave applications

Victoria Gomez-Guillamon Buendia, Symon K. Podilchak

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A simple parallel-plate waveguide (PPW) with a microstrip feed is proposed for efficient TM0 surface-wave (SW) mode excitation. In particular, by means of a truncated PPW and a printed sub-wavelength matching section, phase constants can be tailored and matched at discontinuities. This surface-wave launcher (SWL) offers an attractive microstrip feeding approach to LWAs and is an alternative to more conventional feeding networks that are typically employed for dielectric image guides (DIGs) and other planar structures because of its good performance, low cost and simple implementation. The proposed SWL has been designed to operate at K and Ka bands in a substrate with a relative permittivity of 10.2. In order to validate its performance in a LWA or for other planar applications, several scenarios have been designed and simulated: an end-to-end test circuit, a 1-D LWA and a DIG feeder. High efficiency and wideband operation have been obtained for all these structures. The proposed SWL with a microstrip feed can also be useful for other planar wave guiding structures at microwave and millimeter-wave frequencies.
Original languageEnglish
Title of host publication12th European Conference on Antennas and Propagation (EuCAP 2018)
Place of PublicationUnited Kingdom
PublisherInstitution of Engineering and Technology
ISBN (Electronic)978-1-78561-816-1
ISBN (Print)978-1-78561-815-4
Publication statusPublished - 10 Dec 2018
Event 12th European Conference on Antennas and Propagation - ExCel London, London, United Kingdom
Duration: 9 Apr 201813 Apr 2018
https://www.eucap2018.org/

Conference

Conference 12th European Conference on Antennas and Propagation
Abbreviated titleEuCAP 2018
CountryUnited Kingdom
CityLondon
Period9/04/1813/04/18
Internet address

Keywords

  • Dielectric image guide
  • Leaky-wave antennas
  • Parallel plate waveguides
  • Surface wave launcher

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