2019
DOI: 10.1002/mmce.21968
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High‐gain compact rectangular dielectric resonator antenna using metamaterial as superstrate

Abstract: A compact high‐gain rectangular dielectric resonator antenna (RDRA) using metamaterial (MTM) as superstrate for C‐band applications is proposed in this article. The proposed antenna consists of coaxial‐fed RDRA with 50 unit cells of MTM arranged in 5 × 10 layout as superstrate. Each unit cell is constructed of two parallel eight‐shaped copper strips printed over both faces of a dielectric substrate to provide negative refractive index from 7.3 to 8.1 GHz covering the maximum bandwidth of RDRA. The extracted lu… Show more

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Cited by 22 publications
(12 citation statements)
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“…In mushroom‐shaped DRA, mounting of spherical cap lens and metal reflector contributed to gain enhancement. Some other techniques to improve the gain of DRA includes loading with metamaterial (MTM) …”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…In mushroom‐shaped DRA, mounting of spherical cap lens and metal reflector contributed to gain enhancement. Some other techniques to improve the gain of DRA includes loading with metamaterial (MTM) …”
Section: Introductionmentioning
confidence: 99%
“…Some other techniques to improve the gain of DRA includes loading with metamaterial (MTM). 19,20 In this article, high gain multiband cylindrical dielectric resonator (CDR) integrated with conical horn antenna is presented. Aluminum-based conical-shaped horn is exploited as the surrounding of the inverted cylindrical DRA to achieve gain enhancement with multiband frequency response.…”
Section: Introductionmentioning
confidence: 99%
“…One usage of them is selecting the appropriate size of DRAs to excite TE 111 mode and TE 113 to increase the gain of the antennas. [9][10][11][12] Since the two modes have two different resonant frequencies and similar radiation characteristics [13][14][15] , it can also broaden the bandwidth. Another usage of dual modes is in circularly polarized DRAs, which are designed by exciting two orthogonal modes with a 90 phase shift to form a circular-polarized characteristic.…”
Section: Introductionmentioning
confidence: 99%
“…The methods are effective and greatly improve the bandwidth of the microstrip antennas. What"s more, some researchers have improved the gain of the antenna by dielectric resonator antenna [7][8][9]. However, some other challenges such as gain improvement and planar structure are brought.…”
Section: Introductionmentioning
confidence: 99%