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 language | English |
|---|---|
| Title of host publication | 12th European Conference on Antennas and Propagation (EuCAP 2018) |
| Publisher | Institution of Engineering and Technology |
| Number of pages | 4 |
| ISBN (Electronic) | 9781785618161 |
| Publication status | Published - 2018 |
| Event | 12th European Conference on Antennas and Propagation 2018 - London, United Kingdom Duration: 9 Apr 2018 → 13 Apr 2018 |
Conference
| Conference | 12th European Conference on Antennas and Propagation 2018 |
|---|---|
| Abbreviated title | EuCAP 2018 |
| Country/Territory | United Kingdom |
| City | London |
| Period | 9/04/18 → 13/04/18 |
Keywords
- Dielectric image guide
- Leaky-wave antennas
- Parallel plate waveguides
- Surface wave launcher
ASJC Scopus subject areas
- Electrical and Electronic Engineering