Characteristic mode analysis of ground plane size in microstrip patch antennas

Elsewe, Mohamed M.; Chatterjee, Deb

doi:10.1109/aps.2016.7695923

Cited by 3 publications

(2 citation statements)

References 6 publications

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“…To explain this strong isolation between the 2 antennas at these positions, we simulated the characteristic modes of the ground plane [41], [42]. It is proved that for each mobile chassis there exist several characteristic modes that can be excited to constitute together with the antenna, a radiating element [43].…”

Section: Optimization Of the Dual Band-antenna Systemmentioning

confidence: 99%

Optimization of Efficient Dual Band PIFA System for MIMO Half-Duplex 4G/LTE and Full-Duplex 5G Communications

et al. 2019

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In this paper, a two efficient Planar Inverted-F Antenna (PIFA) system for dual-band functionality on fourth-generation (4G) band (2.5-2.7 GHz) and future fifth-generation (5G) band (3.4-3.8 GHz) is presented. During the optimization process, in order to obtain an efficient system, particular attention has been paid to the antenna system efficiency as well as the isolation between the antennas. Thus, the influence of the antenna slot design used to achieve a dual-band behavior on the antenna efficiency has been particularly studied. Moreover, the antenna positions on the Printed Circuit Board (PCB) have been chosen thanks to the use of characteristic mode analysis to obtain high isolation levels in both bands. The final system is optimized for Multiple Input Multiple Output Half Duplex (MIMO HD) 4G communications and Tx/Rx Full-Duplex (FD) 5G communications. A prototype with 140 mm × 70 mm ground plane was simulated, fabricated and measured. A high isolation level between the two ports of the PIFA elements, better than 35 dB in 5G band and 20 dB in 4G band in simulation and measurement that were done in free space, is obtained. Additionally, the most important diversity metrics are computed to evaluate the potential of this two-antenna system for diversity applications.INDEX TERMS Full-duplex (FD), half duplex (HD), isolation, multiple input multiple output (MIMO), planar inverted-F antenna (PIFA), multi-band antenna system.

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Section: Optimization Of the Dual Band-antenna Systemmentioning

confidence: 99%

Optimization of Efficient Dual Band PIFA System for MIMO Half-Duplex 4G/LTE and Full-Duplex 5G Communications

et al. 2019

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“…Characteristic Modes analysis was beneficial in the evaluation and synthesis of numerous antennas, like electrically small antennas, linear wire antennas, mobile handset planar antennas [18].CMA is employed in various planar antenna of which few include estimation of the resonance, excitation of circular polarization and location of feed [19], mode excitation in metasurface antenna [20], effects of ground plane dimensions [21], Placement and dimensional analysis of slot [22], wideband Characteristic Mode Analysis Based X-Band Defected Dodecagonal Patch Antenna Bharath Ganji, Riyaz Hussain Shaik omnidirectional antenna [23].…”

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confidence: 99%

Characteristic Mode Analysis Based X Band Defected Dodecagonal Patch Antenna

Ganji*,

Shaik

2019

IJEAT

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A defected dodecagonal microstrip antenna fed through co-planar waveguide and operating in X-band frequency range(8-12 GHz) is proposed. Characteristic mode analysis is employed in examining the impact of defects on the resonant frequencies and return loss. Contrast in return loss for the suggested antenna with and without defects is dealt through Characteristic mode Analysis. Geometrical aspects of the proposed antenna are 40 mm × 35.5 mm × 0.1 mm. Subtrate material used in design is FR4 with a dielectric constant (εr ) = 4.4 and height (h) = 0.1m. CST Microwave Studio is used to simulate antenna parameters and Characteristic mode analysis. A return loss of -49.5dB at center frequency of 10.12GHz is observed with a fractional bandwidth of 47.6%. Gain of the antenna peaks at 4 dBi in the band of operation.

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