Title
Wideband Transition For Increased-Height Empty Substrate Integrated Waveguide
Abstract
Recently, Empty Substrate Integrated Waveguide (ESIW) technology was proposed for embedding empty waveguides into planar substrates in order to improve their performance. A low-loss and narrow-band transition from microstrip to an increased height ESIW with 4 layers was presented in a previous work, and used to implement a very high-quality factor bandpass filter at Q-band. With such a narrow-band transition, based on a quarter-wavelength transformer, a very narrow-band filter response with resonators having a quality factor of 1000 was achieved. In this paper, in order to overcome the narrow-band and the 4-layers output restrictions, and extend the practical use of such increased height ESIWs beyond narrow-band filters, we present a novel wideband transition from microstrip to an increased height ESIW with an arbitrary number of layers. A full suite of wideband transitions to increased height ESIWs, built with different number of substrate layers ranging from 3 to 8, has been designed in this work to operate at Ka-band, though they can be easily transferred to other bands if the dimensions of the transition are properly scaled. To illustrate this, the original Ka-band transitions have been mapped to Ku-band, with excellent results. In order to test the proposed design method, a prototype of a 4-layer structure has been fabricated at Ka-band, achieving a good performance in the whole useful bandwidth of the ESIW.
Year
DOI
Venue
2019
10.1109/ACCESS.2019.2947215
IEEE ACCESS
Keywords
DocType
Volume
Rectangular waveguides, Substrates, Impedance, Waveguide transitions, Wideband, Cutoff frequency, Microstrip, Empty substrate integrated waveguide, ESIW, high quality factor, microstrip transition, multilayer, substrate integrated circuit, SIC, substrate integrated waveguide, SIW
Journal
7
ISSN
Citations 
PageRank 
2169-3536
0
0.34
References 
Authors
0
5
Name
Order
Citations
PageRank
Juan A. Martinez100.34
Angel Belenguer221.04
Juan J. De Dios300.34
Héctor Esteban401.01
Vicente E. Boria503.72