A New Small Size Non-degenerate Dual-mode Patch Filter

Sheta, Abdel Fattah; Al-Eshaikh, Mohammad A.

doi:10.1163/156939311797164792

Cited by 4 publications

(2 citation statements)

References 24 publications

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“…All of the slots are of the same length and width [30]. The slotted square patch can be designed based on the fractal concept [31][32][33][34] or TM mn0 modes [35,36]. The latter is adopted and considered as a square cavity with magnetic walls.…”

Section: Single Element Antennamentioning

confidence: 99%

New Compact Antenna Array for MIMO Internet of Things Applications

et al. 2022

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A communication system is proposed for the Internet of Things (IoT) applications in desert areas with extended coverage of regional area network requirements. The system implements a developed six-element array that operates at a 2.45 GHz frequency band and is optimized to reduce the size and limit element coupling to less than −20 dB. Analysis of the proposed system involves a multiple-input multiple-output (MIMO) operation to obtain the diversity gain and spectral efficiency. In addition, the radiation efficiency of the proposed antenna is greater than 65% in the operation bandwidth (more than 30 MHz) with a peak of 73% at 2.45 GHz. Moreover, an adaptive beamforming system is presented based on monitoring the direction of arrival (DOA) of various signals using the root MUSIC algorithm and utilizing the DOA data in a minimum variance distortionless response (MVDR) technique beamformer. The developed array is found to have an envelope correlation coefficient (ECC) value of less than 0.013, mean effective gain (MEG) of more than 1 dB, diversity gain of more than 9.9 dB, and channel capacity loss (CCL) of less than 0.4 bits/s/Hz over the operation bandwidth. Adaptive beamforming is used to suppress interference and enhance the signal-to-interference noise ratio (SINR) and is found to achieve a data rate of more than 50 kbps for a coverage distance of up to 100 km with limited power signals.

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Section: Single Element Antennamentioning

confidence: 99%

New Compact Antenna Array for MIMO Internet of Things Applications

et al. 2022

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“…Dual-band or multi-band operations can be obtained by etching some slots either in the radiating elements [3,[18][19][20][21][22], in the ground plane of the antennas [23][24][25][26], or both [9,27,28]. A square microstrip patch etched with four symmetrical slots [29][30][31][32][33] has been proposed for nondegenerate dual-mode filter applications.…”

Section: Introductionmentioning

confidence: 99%

Design of Low-Profile Single- and Dual-Band Antennas for IoT Applications

et al. 2021

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This paper presents novel low-cost single- and dual-band microstrip patch antennas. The proposed antennas are realized on a square microstrip patch etched symmetrically with four slots. The antenna is designed to have low cost and reduced size to use in Internet of things (IoT) applications. The antennas provide a reconfigurable architecture that allows operation in different wireless communication bands. The proposed structure can be adjusted to operate either in single band or in dual-band operation. Two prototypes are implemented and evaluated. The first structure works at a single resonance frequency (f1 = 2.4 GHz); however, the second configuration works at two resonance frequencies (f1 = 2.4 GHz and f2 = 2.8 GHz) within the same size. These antennas use a low-cost FR-4 dielectric substrate. The 2.4 GHz is allotted for the industrial, scientific, and medical (ISM) band, and the 2.8 GHz is allocated to verify the concept and can be adjusted to meet the user’s requirements. The measurement of the fabricated antennas closely matches the simulated results.

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Compact dual-mode filter with flexible transmission zeros using slot-line square loop resonator

Su²,

Zhang

et al. 2012

Journal of Electromagnetic Waves and Applications

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A New Small Size Non-degenerate Dual-mode Patch Filter

Cited by 4 publications

References 24 publications

New Compact Antenna Array for MIMO Internet of Things Applications

New Compact Antenna Array for MIMO Internet of Things Applications

Design of Low-Profile Single- and Dual-Band Antennas for IoT Applications

Compact dual-mode filter with flexible transmission zeros using slot-line square loop resonator

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