Next Article in Journal
A Novel Medical Blockchain Model for Drug Supply Chain Integrity Management in a Smart Hospital
Next Article in Special Issue
Analysis and Design of an Energy Verification System for SC200 Proton Therapy Facility
Previous Article in Journal
Discriminative Sparsity Graph Embedding for Unconstrained Face Recognition
Previous Article in Special Issue
Transversely Compact Single-Ended and Balanced Bandpass Filters with Source–Load-Coupled Spurlines
Article Menu
Issue 5 (May) cover image

Export Article

Open AccessArticle

Bandwidth and Gain Enhancement of Endfire Radiating Open-Ended Waveguide Using Thin Surface Plasmon Structure

Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
EEIT Department, Vietnamese German University, Binh Duong 820000, Vietnam
Indian Institute of Technology, Bombay 400076, India
Authors to whom correspondence should be addressed.
Electronics 2019, 8(5), 504;
Received: 24 April 2019 / Revised: 30 April 2019 / Accepted: 2 May 2019 / Published: 7 May 2019
(This article belongs to the Special Issue Applications of Electromagnetic Waves)
PDF [1591 KB, uploaded 16 May 2019]


This paper proposes a technique to enhance the bandwidth and gain of an endfire radiating open-ended waveguide using a thin slow-wave surface plasmon structure. Mounted in the E-plane of the stated waveguide, a thin corrugated slow-wave structure has been used in conjunction with a waveguide transition to generate an endfire electromagnetic beam. An efficient mode conversion from waveguide transition to the corrugate plate resulted in the improved performance of the design. An impedance bandwidth from 8 GHz to 18 GHz has been achieved along with a gain enhancement from 7 dBi to 14.8 dBi using the proposed hybrid design. Endfire radiations have been obtained with a beam width of less than 25° through the proposed hybrid design with an efficiency of about 96 percent. View Full-Text
Keywords: open-ended waveguide; slow-wave; endfire; radiation; dispersion; gain open-ended waveguide; slow-wave; endfire; radiation; dispersion; gain

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Kandwal, A.; Nie, Z.; Li, J.; Liu, Y.; WY. Liu, L.; Das, R. Bandwidth and Gain Enhancement of Endfire Radiating Open-Ended Waveguide Using Thin Surface Plasmon Structure. Electronics 2019, 8, 504.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Electronics EISSN 2079-9292 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top