Broadband proximity fed modified rectangular microstrip antenna

Deshmukh, Amit A.; Vivek, D.; Darpan, S.; Sagar, K.; Ray, K. P.

doi:10.1109/iccict.2012.6398153

Cited by 7 publications

(4 citation statements)

References 7 publications

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“…Wireless technology has improved due to the advent of 5G millimeter wave frequency range, resulting from the demand for fast data rate, wide bandwidth and increased efficiency [1]. MIMO antenna arrays have recently enhanced antenna technology because they provide multi-channel propagation to improve antenna efficiency [2]. Envelope correlation coefficient (ECC) is an important MIMO antennna characteristics which is required to be low, and this ECC is determined by the isolation between the antenna elements and the matching impedance [3].…”

Section: Introductionmentioning

confidence: 99%

Millimeter-Wave ME-Dipole Array Antenna Decoupling Using a Novel Metasurface Structure

Sokunbi,

Kishk

2023

IEEE Access

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A novel customized π-shaped split-ring resonator metasurface arranged in two configurations is presented to decouple 1×2 and 1×4 Millimeter-Wave (MMW) Magneto-Electric (ME) Dipole in the H-Plane with 1.6 mm (0.32λ at 60 GHz) inter-element spacing. The metamaterial unit cell is first designed to inhibit the propagation of coupled surface waves within the bandwidth of interest. A 5×2 arrangement of this unit cell is carefully positioned on the top and bottom of the superstrate with 1 mm spacing (0.2λ at 60 GHz) between the antenna and the superstrate. In the 1×2 array, a maximum measured mutual coupling reduction of 53 dB is observed within the 52-66 GHz bandwidth (23.7%). To further demonstrate the uniqueness of the metasurface, an 11×2 configuration of this unit cell is arranged as a superstrate for the 1×4 ME-dipoles. A maximum measured mutual coupling reduction of 40 dB is achieved without a considerable effect on the radiation characteristics. Parametric analysis is performed to confirm the uniqueness of this new decoupling structure. The proposed antenna exhibits measured high total efficiency (> 89%), high gain (> 8 dB), low envelope correlation coefficient (<0.0003), and very good radiation characteristics throughout the entire bandwidth. The fabricated prototype antenna is measured to validate the simulation results. The proposed antenna is a good recommendation for V-band millimeter-wave MIMO applications like radar research.INDEX TERMS Millimeter-wave magneto-electric dipole, multiple-input-multiple-output (MIMO), split ring resonator.

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Section: Introductionmentioning

confidence: 99%

Millimeter-Wave ME-Dipole Array Antenna Decoupling Using a Novel Metasurface Structure

Sokunbi,

Kishk

2023

IEEE Access

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“…Proximity feed technique has been employed to increase the BW for substrate thickness greater than 0.07λ O. In broadband proximity fed RMSA, a BW of 40% and gain of 5 dBi is obtained . The broadband proximity fed square ring MSA design gives a BW of 43% and 9‐dBi gain at 1000 MHz .…”

Section: Introductionmentioning

confidence: 99%

“…15 In broadband proximity fed RMSA, a BW of 40% and gain of 5 dBi is obtained. 16 The broadband proximity fed square ring MSA design gives a BW of 43% and 9-dBi gain at 1000 MHz. 17 Surrounding the patch elements with metal walls effectively prevents surface waves from being excited in the substrate thus allowing the substrate thickness to be increased without deleterious effects.…”

Section: Introductionmentioning

confidence: 99%

Broadband and high gain stacked microstrip antenna array

Wadkar¹,

Hogade

Chopra

et al. 2019

Micro & Optical Tech Letters

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In this article, broadband and high gain antennas are designed for bandwidth from 1.7 to 2.5 GHz which covers GSM 1800, 3G, 4G, and Wi‐Fi applications. The antennas are designed using 1 bottom and 2 top patches (1B2T) stacked microstrip antenna configuration and its array. The antenna structures consist of copper metallic plate as the bottom patch and low‐cost FR4 substrate for the top patches in air suspended mode. The antennas are enclosed in a metallic cavity which supports top substrate and increases gain and front‐to‐back ratio. The bandwidth for |S11| ≤ −10 dB and peak gain for this configuration are 41.5% and 11.9 dBi, respectively. A broadband 2 × 2 array of 1B2T configuration is designed using tapered feed network to provide impedance matching for broad bandwidth. The structures are designed, fabricated, and tested. A bandwidth of 44% and peak gain of 16.6 dBi has been achieved using 2 × 2 array. The simulated and measured results are in good agreement. The proposed antennas are good candidates for wireless communication systems.

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“…There are several structures reported to improve the antenna characteristics such as E-shaped [5], [6], C-shaped, U-slot loaded and modified L-strip [7][8][9]. Different feeding methods also increase the antenna bandwidth such as proximity feed patch, asymmetric CPW fed patch antennas [10], [11]. Substrate with low dielectric constants, multilayer structures and use of air gaps between the dielectric layers increases the impedance bandwidth and gain of the microstrip antennas [12][13][14].…”

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confidence: 99%