Effect of Feed Substrate Thickness on the Bandwidth and Radiation Characteristics of an Aperture-Coupled Microstrip Antenna with a High Permittivity Feed Substrate
- Authors
- Kim, Jae-Hyun; Kim, Boo-Gyoun
- Issue Date
- Apr-2018
- Publisher
- KOREAN INST ELECTROMAGNETIC ENGINEERING & SCIENCE
- Keywords
- Aperture-Coupled Antenna; High Permittivity Feed Substrate; Monolithic Microwave Integrated Circuits (MMICs); Microstrip Antennas; Mutual Resonance
- Citation
- JOURNAL OF ELECTROMAGNETIC ENGINEERING AND SCIENCE, v.18, no.2, pp.101 - 107
- Journal Title
- JOURNAL OF ELECTROMAGNETIC ENGINEERING AND SCIENCE
- Volume
- 18
- Number
- 2
- Start Page
- 101
- End Page
- 107
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/31813
- DOI
- 10.26866/jees.2018.18.2.101
- ISSN
- 2234-8409
- Abstract
- The impedance bandwidth and radiation characteristics of an aperture-coupled microstrip line-fed patch antenna (ACMPA) with a high permittivity (epsilon(r) = 10) feed substrate suitable for integration with a monolithic microwave integrated circuit (MMIC) are investigated for various feed substrate thicknesses through an experiment and computer simulation. The impedance bandwidth of an ACMPA with a high permittivity feed substrate increases as the feed substrate thickness decreases. Furthermore, the front-to-back ratio of an ACMPA with a high permittivity feed substrate increases and the cross-polarization level decreases as the feed substrate thickness decreases. As the impedance bandwidth of an ACMPA with a high permittivity feed substrate increases and its radiation characteristics improve as the feed substrate thickness decreases, the ACMPA configuration becomes suitable for integration with an MMIC.
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