Reduction of Patch Antenna Coupling by Using a Compact EBG Formed by Shorted Strips With Interlocked Branch-Stubs

Caminita, F.; Costanzo, Sandra; Massa, G. Di; Guarnieri, Giacomo; Maci, S.; Mauriello, Giuseppe; Venneri, I.

doi:10.1109/lawp.2009.2021589

Cited by 48 publications

(30 citation statements)

References 15 publications

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“…Clearly, the proposed SIW single element is far superior to the conventional microstrip patch structure as the implemented SIW cavity efficiently suppresses the surface waves, similar to the effect of band-gap structures [23]- [25]. Meanwhile, the SIW structure is simple to fabricate compared to the metalized cavitybacked case and is also easy to assemble compared to the suspended structures cases.…”

Section: A Single-element Comparisonmentioning

confidence: 99%

Substrate-Integrated Cavity-Backed Patch Arrays: A Low-Cost Approach for Bandwidth Enhancement

Awida

Suleiman²,

Fathy

2011

IEEE Trans. Antennas Propagat.

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The substrate-integrated waveguide (SIW) technology is utilized as an alternative low-cost approach in fabricating cavity-backed patch antennas. The proposed antenna arrays combine the attractive features of the conventional metalized cavity-backed patch arrays like surface wave suppression, high radiation efficiency, and enhanced bandwidth, yet provide a low manufacturing cost. A previously developed design of a 2 2 SIW cavity-backed microstrip patch sub-array is extended here and used as a basic building block to attain larger arrays of 2 4, 4 4, and 8 8 elements. The fabricated arrays have been measured and demonstrate good agreement with their simulated performance. The design and performance of these arrays are compared to other conventional bandwidth enhancement techniques, which prove SIW as a viable alternative.Index Terms-Cavity-backed, microstrip array, substrate integrated waveguide.

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Section: A Single-element Comparisonmentioning

confidence: 99%

Substrate-Integrated Cavity-Backed Patch Arrays: A Low-Cost Approach for Bandwidth Enhancement

Awida

Suleiman²,

Fathy

2011

IEEE Trans. Antennas Propagat.

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“…By altering the ground surface current distribution, a MIMO system with reduced mutual coupling is developed in [5]. Employing EBG structures on the ground plane is another technique to reduce the mutual coupling between MIMO elements [6][7][8]. However, this method is complicated and occupies larger areas in the system.…”

Section: Introductionmentioning

confidence: 99%

Design of a Compact Two Element Mimo Antenna System With Improved Isolation

Kamili¹,

Aldhaheri²,

Talha³

et al. 2014

PIER Letters

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Abstract-A novel compact two-element MIMO (Multiple Input Multiple Output) antenna system operating from 6.1-7.8 GHz is proposed for wireless applications. The developed antenna system resonates at 6.8 GHz frequency, giving an impedance bandwidth of 25% (based on S 11 < −10 dB). An efficient technique is proposed to reduce the mutual coupling developed in the antenna system by employing a simple microstrip patch element in between the antennas. Using the proposed method, the mutual coupling is reduced to around −33 dB at the resonant frequency and maintaining the overall mutual coupling less than −20 dB in the operating band. The experimental models are developed for both the MIMO systems, i.e., without and with patch element between the antennas and the results are compared with simulated results. Also, Envelope Correlation Coefficient (ECC) between the two antennas is calculated and compared.

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“…In this section we will employ ACO for the same purpose. Most of the previous works related to mutual coupling reduction for printed antennas are aimed at EBGs non completely planar, as it is the case of (Yang & Rahmat-Samii (2003), Yang et al (2005), Fu & Yuan (2004), Zheng et al (2008 and Caminita et al (2009)). Besides, all of them use thin high permittivity substrates and both the periodic structure and the patch antenna are printed on the same layer.…”

Section: Planar Arraymentioning

confidence: 99%