Thin-Profile Wideband and High-Gain Microstrip Patch Antenna on a Modified AMC

Ntawangaheza, Jean de Dieu; Sun, Liguo; Yang, Chen; Pang, Yingying; Rushingabigwi, Gerard

doi:10.1109/lawp.2019.2942056

Cited by 21 publications

(8 citation statements)

References 39 publications

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“…An AMC-loaded patch antenna with wideband performance for C-band/WLAN/5G has been proposed in [5]. Another wideband antenna with higher 3 dB bandwidth has been proposed in [6] to cover the entire C-band.…”

Section: Introductionmentioning

confidence: 99%

A wideband, compact, high gain, low-profile, monopole antenna using wideband artificial magnetic conductor for off-body communications

Hazarika

Basu

Nandi

2021

Int. J. Microw. Wireless Technol.

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A wideband staircase pattern defected ground monopole antenna integrated with an artificial magnetic conductor (AMC) reflector has been proposed for C-band (4–8 GHz) and ITU band (8.01–8.5 GHz) applications. The integrated antenna consists of a staircase antenna at top, a 2 × 2 AMC reflector at the bottom and an air substrate as gap between them. The AMC offers 18.5% ± 90° reflection phase bandwidth from 6.10 to 7.32 GHz. The AMC layer has achieved mu-negative properties in the designated band. The AMC proffers polarization independent behavior in the respective frequency band depicting robustness in AMC reflection phase characteristics. The integrated antenna has offered a wide impedance bandwidth of 2.78 GHz (42.8% at 6.5 GHz and 34.1% at 8.15 GHz) due to the defected ground monopole. The integration of wideband AMC beneath the staircase monopole antenna alters the out of phase radiation to in-phase planer pattern which enhances the peak gain up to 9.7 dB. It reduces the 1-g averaged specific absorption rate to 0.223 and 0.324 W/kg at the two designated bands. The structure maintains almost similar bandwidth and gain due to artificial human body loading.

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Section: Introductionmentioning

confidence: 99%

A wideband, compact, high gain, low-profile, monopole antenna using wideband artificial magnetic conductor for off-body communications

Hazarika

Basu

Nandi

2021

Int. J. Microw. Wireless Technol.

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“…Printed antennas, i.e., patches and slots, are intrinsically narrowband and suffer from conductor losses as well as the likely excitation of surface waves, both of which lead to lower efficiency. Different approaches have been proposed to increase bandwidth, such as using multiple layer stacks, perfect magnetic conductors (PMC) and defective grounds [ 12 , 13 , 14 ]. Others have focused on reducing losses associated with surface waves [ 15 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

LTCC-Integrated Dielectric Resonant Antenna Array for 5G Applications

Niayesh

Kouki

2021

Sensors

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A millimeter-wave dielectric resonator antenna array with an integrated feeding network and a novel alignment superstrate in Low Temperature Cofired Ceramics (LTCC) technology is presented. The antenna array consists of 16 cylindrical DR antenna (CDRA) elements operating at 28 GHz for mm-Wave 5G applications. The array is fed by an inverted microstrip corporate feeding network designed and built in the same LTCC stack as the resonators. A grooved and grounded superstrate is introduced to facilitate the alignment of the individual array elements while enhancing the overall performance of the antenna array. The performance of the proposed stack is evaluated numerically and compared with measured data. Measured results show an impedance bandwidth of 9.81% at 28.72 GHz with a maximum realized gain of 15.68 dBi and an efficiency of 88%, and are in excellent agreement with simulations.

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“…Narrow operational bandwidth, low gain and excitation of surface wave eventually lower the radiation efficiency of an antenna. In recent times, artificial magnetic conductor (AMC) has been utilized to enhance the bandwidth and gain of the planar antennas in References 1‐7. In Reference 1, a low‐profile multiband AMC antenna with better radiation performances has been proposed.…”

Section: Introductionmentioning

confidence: 99%

“…In Reference 1, a low‐profile multiband AMC antenna with better radiation performances has been proposed. Low‐profile AMC loaded antenna with wide bandwidth and high gain has been reported in References 2 and 3. An implantable antenna with 12.2% impedance bandwidth and reduced SAR is presented in Reference 4.…”

Section: Introductionmentioning

confidence: 99%

Design of wideband AMC integrated monopole antenna with enhanced radiation performances for off‐body systems

Hazarika

Basu

Nandi

2020

Micro & Optical Tech Letters

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A low-profile, wideband, high gain artificial magnetic conductor (AMC) integrated monopole antenna is proposed in the letter. The bowl-shaped stair styled monopole with defected round type partial ground is integrated with the AMC containing 2 × 2 unit-cells to broaden the impedance bandwidth by 92.7%/66.2%/53.9% at the three resonating notches at 6/8.4/10.3 GHz respectively. The AMC has covered AE90 reflection phase bandwidth from 6.20 to 7.44 GHz (18.56%). The planar AMC proffers mu-negative (MNG) properties and polarization independent behavior. Introduction of AMC beneath the monopole achieves wideband from 5.39 to 10.95 GHz. The AMC integrated monopole provides peak gain up to 10.6 dB which is 66.8% better than that of the only monopole. The integrated antenna offers low-profile features with unidirectional radiation behavior, up to 18.6 dB front to back ratio (FBR) and >90% efficiency. The proposed design reduces 1-g averaged Specific Absorption Rate (SAR) at 1 mm distance up to 96.6% at the respective bands.

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Thin-Profile Wideband and High-Gain Microstrip Patch Antenna on a Modified AMC

Cited by 21 publications

References 39 publications

A wideband, compact, high gain, low-profile, monopole antenna using wideband artificial magnetic conductor for off-body communications

A wideband, compact, high gain, low-profile, monopole antenna using wideband artificial magnetic conductor for off-body communications

LTCC-Integrated Dielectric Resonant Antenna Array for 5G Applications

Design of wideband AMC integrated monopole antenna with enhanced radiation performances for off‐body systems

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