Microstrip antennas with suppressed radiation in horizontal directions and reduced coupling

Nikolić, Marija; Djordjević, A.R.; Nehorai, Arye

doi:10.1109/tap.2005.858847

Cited by 159 publications

(63 citation statements)

References 12 publications

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“…This mutual coupling arises due to the interaction of radiations from closely spaced antennas and also due to the surface currents flowing on the ground plane [2]. The physical causes of the mutual coupling between a pair of identical microstrip antennas are studied and analyzed in [3]. The impact of mutual coupling on channel capacity of a MIMO system is discussed in detail in [4].…”

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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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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“…The main source for this mutual coupling is studied in [2,3].For the reduction of mutual coupling there are various methods like, using Electronic Band Gap (EBG) structures, defected ground structures, decoupling techniques, etc..…”

Section: Introductionmentioning

confidence: 99%

Design of an Inverted U-Shaped MIMO Patch Antenna for Dual Band Applications

Krishna¹,

Kiran²,

Prasanth³

et al. 2015

International Journal of Innovative Research in Electrical, Ele

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A compact design of two element Multiple Input MultipleOutput (MIMO) system is proposed using an inverted U-shaped patch antenna. The antenna is fed by a coaxial feeding technique printed on a dielectric FR-4 substrate. The proposed MIMO system offers good return loss and isolation characterstics. This two element MIMO system produces dual band of frequencies with resonating frequencies at 2.8GHz and6.4GHz,which can be used for WLAN and satellite applications. The simulation results of return loss,mutual coupling and radiation pattern are presented in this paper.

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“…Although surface waves are weakly excited in thin substrates, space waves dominantly increase the EM coupling when adjacent antennas are placed very close to each other [2]. The near-field coupling is also strong when antennas are printed on dielectric substrates with very low permittivity [3].…”

Section: Introductionmentioning

confidence: 99%

Compact Waveguided Metamaterials for Suppression of Mutual Coupling in Microstrip Array

Qamar¹,

Park²

2014

PIER

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Abstract-In this paper, suppression of mutual coupling is achieved using compact waveguided metamaterials (WG-MTMs) in between elements of a densely packed microstrip array. Both the E-plane internally folded complementary split ring resonator and the H-plane internally folded complementary split ring resonator are employed to reduce the mutual coupling between adjacent elements. Coupling suppression of 18 dB and 9 dB, for elements in the E-plane and H-plane, respectively, is demonstrated. Due to the compact size of the waveguided metamaterials, the edge-to-edge separation between elements is kept at only 0.093λ 0 . With the same element spacing, a 2 × 2 array is also simulated with compact WG-MTMs. The proposed structure reduces the array size and enables the implementation of compact Multiple-Input-Multiple-Output systems.

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Microstrip antennas with suppressed radiation in horizontal directions and reduced coupling

Cited by 159 publications

References 12 publications

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

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

Design of an Inverted U-Shaped MIMO Patch Antenna for Dual Band Applications

Compact Waveguided Metamaterials for Suppression of Mutual Coupling in Microstrip Array

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