Gain enhancement with near-zero-index metamaterial superstrate

Bouzouad, Mouloud; Chaker, S. M.; Bensafielddine, D.; Laamari, E. M.

doi:10.1007/s00339-015-9206-0

Cited by 39 publications

(30 citation statements)

References 15 publications

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“…Also, it is observed from the table that the overall thickness and gain enhancement of our proposed design is much better compare to single MTM slab loaded antenna in Refs. . It is observed from the table that the lateral size of the proposed configuration is also better than Refs.…”

Section: Resultsmentioning

confidence: 62%

“…There are various literatures reported in context to gain enhancement using zero‐index property of metamaterials . In Ref.…”

Section: Introductionmentioning

confidence: 99%

“…In recent times, high gain antennas using a single layer MTM superstrate with a zero refractive index have been proposed in Refs. . To improve the gain of the microstrip patch antenna using a single slab of MTM superstrate; in Ref.…”

Section: Introductionmentioning

confidence: 99%

“…Although in Refs. , a single layer metamaterial slab has been used as superstrate for gain enhancement, it is noticed that the overall thickness of the proposed antennas are quite high.…”

Section: Introductionmentioning

confidence: 99%

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Gain enhancement of slot antenna using zero-index metamaterial superstrate

Shaw

Bhattacharjee

Mitra

2016

Int J RF Microw Comput Aided Eng

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This article presents a technique to enhance the broadside gain of a CPW fed slot antenna using a single layer metamaterial (MTM) superstrate. A finite array of 3× 3 ring unit cell has been designed on both sides of a dielectric substrate to form the MTM superstrate. The gain enhancement is obtained using the zero‐index property of the metamaterial. The broadside gain enhancement for the proposed antenna is 7.4 dB more in comparison to that of the reference slot antenna. The proposed MTM superstrate loaded antenna provides a minimum overall thickness in the context of using ZIM superstrate for gain enhancement of antennas reported in earlier literatures. The overall thickness of the MTM loaded antenna is 0.13λ0, where λ0 is the free‐space wavelength at the resonance frequency of the antenna. Also, a high efficiency of about 93.2% is obtained in this case. The loading of the MTM superstrate produces a minimal effect on the cross polarization performance of the proposed slot antenna.

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Section: Resultsmentioning

confidence: 62%

“…There are various literatures reported in context to gain enhancement using zero‐index property of metamaterials . In Ref.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Although in Refs. , a single layer metamaterial slab has been used as superstrate for gain enhancement, it is noticed that the overall thickness of the proposed antennas are quite high.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Gain enhancement of slot antenna using zero-index metamaterial superstrate

Shaw

Bhattacharjee

Mitra

2016

Int J RF Microw Comput Aided Eng

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“…Moreover, these structures do not provide significant gain. Partially reflecting surface above the antenna [8], artificial magnetic conductors [9], [10] and metamaterials [11], [12] have been used for gain enhancement. But none of them have been used for improvement of gain of multiband antennas.…”

Section: Introductionmentioning

confidence: 99%

Design of Triple Band Slot-Patch Antenna with Improved Gain Using Triple Band Artificial Magnetic Conductor

Ghosh¹,

Mandal²,

Das³

2016

RADIOENGINEERING

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Performance improvement of slotted elliptical patch antenna using FSS superstrate

Peddakrishna¹,

Khan

2018

Int J RF Microw Comput Aided Eng

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In this article, the slotted microstrip‐ fed elliptical patch antenna is designed and optimized to operate at the resonance frequency of 5.38 GHz. Then, the designed patch antenna is further analyzed in a resonant cavity formed by a frequency selective surface (FSS) superstrate and antenna ground plane. The highly reflective behavior of FSS from the offset of the resonance is utilized for improving the performance of the antenna. The optimized slotted geometry produces a gain improvement of 2.5 dBi, impedance bandwidth improvement of 0.21 GHz, simultaneously at the operating resonance frequency of 5.38 GHz. After placing an FSS superstrate at a height of 28.5 mm above the antenna substrate, further improvement of 5.1 dBi gain and 0.13 GHz bandwidth is attained, For validation purpose, the prototypes of the slotted patch antenna with and without FSS superstrate are fabricated and characterized. A fairly good agreement is achieved in the measured and simulated results.

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Gain enhancement with near-zero-index metamaterial superstrate

Cited by 39 publications

References 15 publications

Gain enhancement of slot antenna using zero-index metamaterial superstrate

Gain enhancement of slot antenna using zero-index metamaterial superstrate

Design of Triple Band Slot-Patch Antenna with Improved Gain Using Triple Band Artificial Magnetic Conductor

Performance improvement of slotted elliptical patch antenna using FSS superstrate

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