Wide band circularly polarised diversity antenna for satellite and mobile communication

Kharche, Shilpa; Reddy, G. Shrikanth; Gupta, Rajiv; Mukherjee, Jayanta

doi:10.1049/iet-map.2016.1152

Cited by 11 publications

(6 citation statements)

References 28 publications

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“…In current communication systems, multiple-input multiple-output (MIMO) antennas are used to send and receive multiple data signals over the same radio channel [1]. MIMO antennas are important components in current wireless communication systems as they can reduce interference, and enhance connection quality and channel capacity without requiring more bandwidth.…”

Section: Introductionmentioning

confidence: 99%

Designed Circularly Polarized Two-Port Microstrip MIMO Antenna for WLAN Applications

Khan

Ullah

et al. 2022

Applied Sciences

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The proposed work describes a corner square-cut square-patch multiple-input multiple-output (MIMO) antenna with reduced mutual coupling for circular polarization (CP). A two-port MIMO-CP antenna was designed and operated at 5.6 GHz for wireless local area network (WLAN) applications. The dimensions of the MIMO-CP antenna were 22.5×50mm2(0.43λ0×0.933λ0) and the FR4 substrate height was 1.6 mm. Between the two-elements, the edge-to-edge distance was 12.2 mm (0.227 λ0), where λ0 was the free space wavelength at 5.6 GHz. A slot was created in the middle of the ground in the proposed MIMO antenna to reduce mutual coupling and improve CP. The ground slot improves impedance matching and provides a better S-parameter and axial ratio (AR), according to the antenna results. According to the simulated results, the proposed antenna bandwidth of 5.23–6.42 GHz (21.4%) for S11 were <−10 dB, isolation was −37 dB with a peak gain of 6 dB and AR ≤3 dB from 5.37 to 5.72 GHz (6.25%). The proposed antennas are simple to fabricate, have low profiles, are inexpensive, have good isolation, and are CP. The diversity gain (DG) and envelop correlation coefficient (ECC) results are better in the simulated frequency band. A MIMO-CP antenna geometry prototype is built and measured for comparison, yielding good results when compared to the simulated and measured results. The MIMO-CP antenna, as designed, is suitable for WLAN applications.

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Section: Introductionmentioning

confidence: 99%

Designed Circularly Polarized Two-Port Microstrip MIMO Antenna for WLAN Applications

Khan

Ullah

et al. 2022

Applied Sciences

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“…Two-port MIMO antenna consisting of close radiating patches is reported for circular polarization. 15 In this design, a modification in the split ring resonator embedded with the ground plane, are demonstrated which minimize the mutual coupling between the two ports. A single element dual-port fed MIMO antenna is presented in Reference 16.…”

Section: Introductionmentioning

confidence: 99%

Compact circularly polarized MIMO printed antenna with novel ground structure for wideband applications

Tiwari

Singh

Kanaujia

et al. 2021

Int J RF Mic Comp-Aid Eng

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In this article, a microstrip line fed 2-port circularly polarized multiple-inputmultiple-output (MIMO) antenna is designed and fabricated. A novel ground structure and radiating patches are used to achieve the circularly polarized radiated field by the MIMO antenna. To improve the isolation between two ports, a meandered U-shaped narrow metallic strip is placed between the asymmetric Z-shaped radiating elements. The proposed MIMO design demonstrates the impedance bandwidth (S 11 ≤ À10 dB) of 90.94% (3.04-8.11 GHz).The axial ratio bandwidth ≤3 dB is found to be 32.10% (4.42-6.11 GHz). The diversity parameters such as envelope correlation coefficient, diversity gain, mean effective gain, total active reflection coefficient and channel capacity loss are also calculated to make the proposed design more reliable for 5G applications. This antenna is made compact and small which carries the dimension 24 Â 24 Â 1.6 mm 3 . The entire investigation is first modeled using the simulation software CST Microwave Studio and then verified with the measured results.

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“…The additional decoupling structure is an obstacle to maintain the low profile of the antenna system. In this regard, antenna isolation using pattern and polarization diversity is an interesting technique to achieve MIMO performance [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Slot-Type Mimo Antenna With Pattern and Circular Polarization Diversity for Mobile Applications

Ullah¹,

Zahid²

2020

PIER M

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Here we propose an L-shaped slot-type MIMO antenna with pattern and circular polarization diversity for WLAN applications. In order to maintain a low profile, the pattern and polarization diversities have been achieved without using additional supporting structures. Both the antenna elements are located at the corners of the same side of the ground plane. One of the antenna elements produces left hand circularly polarized (CP) waves whereas the other element produces right hand CP waves in (front) +z-direction. The senses of polarizations are opposite in (backward) −zdirection. CP waves have been generated using two orthogonal current modes, excited by locating the slots on the corner of the ground plane. The quadrature phase difference between the modes has been employed using the slot geometry. In other directions, the antenna correlation has been reduced using pattern diversity. The measured results confirm the simulated ones. The measured axial ratio bandwidth (< 3 dB) and the matching bandwidth (< −6 dB) are 380 MHz and 110 MHz, respectively. The envelop correlation coefficient is less than 0.1 in the operating band.

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Wide band circularly polarised diversity antenna for satellite and mobile communication

Cited by 11 publications

References 28 publications

Designed Circularly Polarized Two-Port Microstrip MIMO Antenna for WLAN Applications

Designed Circularly Polarized Two-Port Microstrip MIMO Antenna for WLAN Applications

Compact circularly polarized MIMO printed antenna with novel ground structure for wideband applications

Slot-Type Mimo Antenna With Pattern and Circular Polarization Diversity for Mobile Applications

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