Isolation Enhancement Between Two Packed Antennas With Coupling Element

Hwang, Jiunn-Nan; Chung, Shyh-Jong

doi:10.1109/lawp.2011.2174957

Cited by 22 publications

(6 citation statements)

References 9 publications

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“…A stepped impedance resonator decoupling structure is applied to enhance decoupling, but the size becomes bigger [6]. The isolation structure located in the middle of two antennas is designed [7]- [10]. In my work, isolation is strengthened through the structure of the antenna itself.…”

Section: Introductionmentioning

confidence: 99%

A Simple Patch Antenna with Enhanced Isolation Without Extra Structure

Zang,

Li,

et al. 2023

J. Phys.: Conf. Ser.

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A simple patch antenna with enhanced isolation and without extra structure is devised. The isolation is enhanced by 5 dB by loading two shorting pins, and the working frequency is not changed at 3.45 GHz. Radiation pattern is little changed after loading two shorting pins. There is no additional structure between the two antennas. Isolation is strengthened through the structure of the antenna itself.

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Section: Introductionmentioning

confidence: 99%

A Simple Patch Antenna with Enhanced Isolation Without Extra Structure

Zang,

Li,

et al. 2023

J. Phys.: Conf. Ser.

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“…The orthogonal arrangement of antennas is also an effective method to reduce coupling between them [6][7][8]. It is possible to adjust the beam direction using an elevated ground [9][10][11] between adjacent antenna units that serves as a reflector plate. The insertion of sub-wavelength periodic structures between antennas, such as an electromagnetic band gap (EBG) [12][13][14][15], has the function of preventing interference between the antennas.…”

Section: Introductionmentioning

confidence: 99%

Compact-Transmission-Line Decoupling and Matching Network of Three-Element Array for Wireless Applications

Zhang

Jiao

2023

Electronics

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In this paper, a compact-transmission-line (TL) decoupling and matching network (DMN) for three-element circular arrays is presented. As a result of the miniaturization of wireless terminals, the antenna spacing is too close, leading to large couplings and deteriorating system performance. The DMN consists of an impedance transformation section and a star-shaped neutralization section which eliminates couplings between antennas while occupying a smaller area. The impedance transformation section converts the odd and even mode conductances of the antenna to the impedance of the feeding line, and the neutralization section eliminates the odd and even mode susceptances to complete the decoupling and matching of the antenna. The star-shaped circuit utilizes the area surrounded by the antennas in a more efficient manner than traditional triangle circuits. This facilitates the folding of the TL and the miniaturization of the circuit. A design formula is given for each module of the circuit after it has been analyzed analytically. A decoupling example is simulated and manufactured with the diameter of the area occupied by the DMN less than a quarter wavelength. At the working frequency, the port isolation is increased from 7.6 dB to 33.5 dB. The ECC between ports is reduced from 0.11 to 0.011, which validates the method proposed.

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“…Higher antenna efficiencies and lower correlation coefficients can be achieved with lower mutual coupling [2]. Previous work that related with reduction of mutual coupling techniques studied in [3][4][5][6][7][8][9][10][11]. Authors in [3] proposed T-Shape slot impedance transformer with isolation over 19.2 dB and 22.8 dB at 2.4-2.48 GHz and 3.4-3.6 GHz respectively with correlation coefficients less than 0.5.…”

Section: Introductionmentioning

confidence: 99%

MIMO Antenna Performances on Microstrip Antenna with EBG Structure for WLAN Applications

Othman

Marzudi

Yusof

et al. 2015

AMM

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A dual microstrip MIMO antenna with Electromagnetic Bandgap (EBG) structures presented. EBG structures proposed in order to reduce the coupling between elements .Simulated scattering parameters with and without EBG structures compared. An evaluation of MIMO antenna characteristics is presented, with the analysis of the mutual coupling, correlation coefficients, total active reflection coefficients (TARC), capacity loss and channel capacity using Computer Simulation Technology (CST) Microwave Studio Software. The proposed antenna is a good candidate for WLAN practical applications.

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Isolation Enhancement Between Two Packed Antennas With Coupling Element

Cited by 22 publications

References 9 publications

A Simple Patch Antenna with Enhanced Isolation Without Extra Structure

A Simple Patch Antenna with Enhanced Isolation Without Extra Structure

Compact-Transmission-Line Decoupling and Matching Network of Three-Element Array for Wireless Applications

MIMO Antenna Performances on Microstrip Antenna with EBG Structure for WLAN Applications

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