Abstract
The ray-tracing method is applied to study the radiation of a cavity resonance antenna (CRA) with both single and multiple dielectric superstrate layers. The behavior of the broadside directivity is investigated by analyzing the reflection phase of the antenna superstrates. To enhance the bandwidth of the CRA and maintain its large broadside directivity, a multilayered superstrate of an increasing reflection phase with frequency is presented. When compared to the single-layered CRA, a bandwidth enhancement of more than 100% is attained using a multilayered CRA of three superstrate slabs. Theoretical results are validated by simulations using commercial numerical electromagnetics software.
Original language | English |
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Title of host publication | 2011 IEEE MTT-S International Microwave Symposium (IMS) |
Publisher | IEEE |
ISBN (Electronic) | 9781612847573 |
ISBN (Print) | 9781612847542 |
DOIs | |
Publication status | Published - 4 Aug 2011 |
Event | 2011 IEEE MTT-S International Microwave Symposium - Baltimore, MD, United States Duration: 5 Jun 2011 → 10 Jun 2011 |
Conference
Conference | 2011 IEEE MTT-S International Microwave Symposium |
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Abbreviated title | IMS 2011 |
Country/Territory | United States |
City | Baltimore, MD |
Period | 5/06/11 → 10/06/11 |
Keywords
- Broadband antennas
- cavity resonators
- directive antennas
- electromagnetic propagation
- electromagnetic reflection
- leaky wave antennas
ASJC Scopus subject areas
- Radiation
- Condensed Matter Physics
- Electrical and Electronic Engineering