An off‐center‐fed compact wideband antenna with truncated corners and parasitic patches for circular polarization

Dash, Sounik Kiran Kumar; Cheng, Qingsha S.; Khan, Taimoor

doi:10.1002/mmce.22244

Cited by 3 publications

(3 citation statements)

References 17 publications

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“…In addition, that of the third additional mode adding to AR BW against the earlier reported unequal length U-slot cut CP MSA and design methodology to realize triple mode CP configuration around specific frequency band is not discussed. The multi-layer stacked ring design discussed in [26] and gap-coupled design presented in [27] have lower AR BW than the proposed gap-coupled design of Sectoral patches. The CP design presented in [28] offers higher AR BW and gain, but it requires large patch size due to the array configuration.…”

Section: Results Discussion and Comparative Analysismentioning

confidence: 89%

“…The CP response in MSA is achieved either by cutting narrow slot in the patch, or by using modified patch shapes, or by embedding resonant slot inside the patch, or by using defected ground plane structures [16][17][18][19][20][21][22][23][24][25]. While catering to the multiple wireless applications using a single design, wideband CP MSA is required, and it is obtained by using a thicker substrate followed by the gap-coupled/stacked configurations, or the array designs [26][27][28][29]. By using the reconfigurable design approach employing the active devices integrated on the radiating patch, pattern reconfigurable response, compact high gain antenna design, and linearly to circularly polarized response are achieved in MSAs [30][31][32][33][34].…”

Section: Introductionmentioning

confidence: 99%

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Reconfigurable Designs of Sectoral Microstrip Antennas for Wideband and Circularly Polarized Response

Chavali,

Deshmukh,

Ambekar

et al. 2024

PIER C

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Gap-coupled designs of Sectoral microstrip antenna for 90 • and 45 • sectoral angle are proposed for wideband and circularly polarized response. On total substrate thickness of ∼ 0.1λg, proximity fed design of 90 • Sectoral patch yields simulated bandwidth of 827 MHz (50.41%) with a peak gain of 8.1 dBi, whereas its gap-coupled configuration with parasitic 45 • Sectoral patches yields simulated bandwidth of 1336 MHz (69.11%) with a peak gain of 8.0 dBi. A gap-coupled design of two 90 • Sectoral patches is presented in which orthogonal directions of the fundamental mode currents over the aperture are maintained. This yields circularly polarized response with axial ratio bandwidth of 709 MHz (34.88%) which lies inside the impedance bandwidth of 1103 MHz (60.09%). It offers a peak gain of larger than 7 dBi across the axial ratio bandwidth. To achieve all these operational features using a single patch, a reconfigurable design of Sectoral patches is proposed that yields similar wideband and circularly polarized characteristics. Thus present study provides a wideband and circularly polarized design that offers either impedance bandwidth of more than 65% or axial ratio bandwidth of nearly 35%. For achieved antenna response, the proposed designs fulfill the requirements of LTE (band 65, 66, and 70) and various aeronautical service mobile satellite bands (1610-2300 MHz). Experimental validation for the obtained results is carried out that shows close matching.

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Section: Results Discussion and Comparative Analysismentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Reconfigurable Designs of Sectoral Microstrip Antennas for Wideband and Circularly Polarized Response

Chavali,

Deshmukh,

Ambekar

et al. 2024

PIER C

View full text Add to dashboard Cite

show abstract

“…It also desires circularly polarized (CP) antennas in order to minimize the unexpected losses due to multipath fading, polarization mismatch, and antenna misalignment, etc. Hence, the primary requirement for satellite communications can be briefed as dual-frequency, circular polarization with improved gain [6]. As per literature [2], the investigation on DRA for satellite communication is very much limited and needs further exploration.…”

Section: Introductionmentioning

confidence: 99%

A superstrate loaded aperture coupled dual-band circularly polarized dielectric resonator antenna for X-band communications

Dash

Cheng

Khan

2020

Int. J. Microw. Wireless Technol.

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A superstrate loaded cylindrical dielectric resonator antenna is developed and demonstrated for dual-band circular polarization. The proposed antenna employs a microstrip-fed rotated cross-shaped slot coupling technique for exciting the dielectric resonator (DR). The design is developed in a straight forward way. Firstly, the DR is coupled with a conventional plus-shaped slot and operates in linear polarization mode at 7.4 and 11.2 GHz. Secondly, the slot is rotated by 10° to enable out-of-phase excitation and ensure circular polarization at the above-mentioned frequencies. In the third step, a square dielectric superstrate is placed above the DR which creates multiple reflection and enhance the gain up to ~8 dBi in both the frequencies without affecting other performances. The development stages are discussed in detail. The proposed design is demonstrated through prototype fabrication and characterization. This antenna can be used for X-band satellite communications.

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A Wearable Circularly Polarized Antenna Backed by AMC Reflector for WBAN Communications

et al. 2022

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An off‐center‐fed compact wideband antenna with truncated corners and parasitic patches for circular polarization

Cited by 3 publications

References 17 publications

Reconfigurable Designs of Sectoral Microstrip Antennas for Wideband and Circularly Polarized Response

Reconfigurable Designs of Sectoral Microstrip Antennas for Wideband and Circularly Polarized Response

A superstrate loaded aperture coupled dual-band circularly polarized dielectric resonator antenna for X-band communications

A Wearable Circularly Polarized Antenna Backed by AMC Reflector for WBAN Communications

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