Design of circularly polarized planar leaky‐wave antenna using characteristic mode analysis

Barzegari, Saeed; Forooraghi, Keyvan; Arand, Bijan Abbasi

doi:10.1049/mia2.12108

Cited by 2 publications

(1 citation statement)

References 22 publications

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“…Each mode has a modal significance, eigenvalue, and characteristic angle in characteristic mode theory, which are represented by matrices of characteristic mode analysis. Each metric has its own meaning, but they all represent the same features of a particular characteristic mode [28,29].…”

Section: Design Of Flower-shaped 4 × 4 Uwb-mimomentioning

confidence: 99%

A Flower Shaped Miniaturized 4×4 Mimo Antenna for Uwb Applications Using Characteristic Mode Analysis

Suresh¹,

Reddy²

2022

PIER C

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A novel design of a 4 × 4 miniaturized UWB-MIMO (multiple-input, multiple-output) antenna with isolation improvement is proposed in this paper. The designing procedure of a flowershaped MIMO antenna is done using characteristic mode analysis (CMA). The flower-shaped UWB-MIMO antenna is made up of four symmetrical flower-shaped radiating elements that are isolated using an orthogonal method. The flower antenna's dimensions are 40×40×1.6 mm 3 (0.44λ 0 ×0.44λ 0 ×0.017λ 0 ). A flower-shaped radiator is used to get good the isolation in MIMO elements. Further isolation is enhanced by inserting a swastik-shaped stub on the ground to get return losses of S 11 < −10 dB and isolation of S 12 < −18 dB. The designed antenna covers the entire UWB (3.1 GHz-14 GHz) spectrum for impedance matching, including (10.7 GHz to 11.7 GHz), 11 GHz (10.7 GHz to 11.7 GHz), and 13 GHz (10.7 GHz to 11.7 GHz) (12.75 to 13.25 GHz). Good diversity performance is achieved in the UWB and ITU range. The designed antenna has a gain of 5.5 dB, an efficiency of 89%, an impedance bandwidth of 123.61%, an envelope correlation coefficient of 0.012, a diversity gain of nearer to 10 dB, a capacity channel loss of 0.29 bp/s/Hz, and a mean effective gain of less than −3.1 dB. The designed antenna is fabricated and tested. These simulated results are validated in state-of-the-art laboratories. According to the simulation and measurement results, this antenna is well suited for reliable wireless communication systems. The potentiality of the designed antenna is high, and the antenna is compact and portable.

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Section: Design Of Flower-shaped 4 × 4 Uwb-mimomentioning

confidence: 99%

A Flower Shaped Miniaturized 4×4 Mimo Antenna for Uwb Applications Using Characteristic Mode Analysis

Suresh¹,

Reddy²

2022

PIER C

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Investigations on Stub-Based UWB-MIMO Antennas to Enhance Isolation Using Characteristic Mode Analysis

et al. 2022

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In this article, very compact 2 × 2 and 4 × 4 MIMO (Multiple-Input and Multiple output) antennas are designed with the help of Characteristics Mode Analysis to enhance isolation between the elements for UWB applications. The proposed antennas are designed with Characteristic Mode Analysis (CMA) to gain physical insight and also to analyze the dominant mode. To improve isolation and minimize the mutual coupling between radiating elements, elliptical shaped stubs are used. The dimensions of the 2 × 2 and 4 × 4 MIMO antennas are 0.29λ0 × 0.21λ0 (28 × 20 mm2) and 0.29λ0 × 0.42λ0 (28 × 40 mm2), respectively. These antennas cover the (3.1 GHz–13.75 GHz) UWB frequency band and maintain remarkable isolation of more than 25 dB for both 2 × 2 and 4 × 4 antennas. The impedance bandwidth of the proposed 4 × 4 MIMO antenna is 126.40% from 3.1 GHz to 13.75 GHz, including X-Band and ITU bands. The proposed 4 × 4 antenna has good radiation efficiency, with a value of more than 92.5%. The envelope correlation coefficient (ECC), diversity gain (DG), mean effective gain (MEG), and channel capacity loss (CCL) matrices of the 4 × 4 antenna are simulated and tested. The corresponding values are 0.0045, 9.982, −3.1 dB, and 0.39, respectively. The simulated results are validated with measured results and favorable agreements for both the 2 × 2 and 4 × 4 UWB-MIMO antennas.

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Design of circularly polarized planar leaky‐wave antenna using characteristic mode analysis

Cited by 2 publications

References 22 publications

A Flower Shaped Miniaturized 4×4 Mimo Antenna for Uwb Applications Using Characteristic Mode Analysis

A Flower Shaped Miniaturized 4×4 Mimo Antenna for Uwb Applications Using Characteristic Mode Analysis

Investigations on Stub-Based UWB-MIMO Antennas to Enhance Isolation Using Characteristic Mode Analysis

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