Decoupling Network Comprising Transmission Lines and Bridge Resistance for Two-Element Array Antenna

Shumo LI; Naoki HONMA

doi:10.1587/transcom.E97.B.1395

Decoupling Network Comprising Transmission Lines and Bridge Resistance for Two-Element Array Antenna

Shumo LI, Naoki HONMA

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This paper presents a novel decoupling network consisting of transmission lines and a bridge resistance for a two-element array antenna and evaluates its performance through simulations and measurements. To decouple the antennas, the phase of the mutual admittance between the antenna ports is rotated by using the transmission lines, and a pure resistance working as a bridge resistance is inserted between the two antenna ports to cancel the mutual coupling. The simulation results indicate that the proposed decoupling network can provide a wider bandwidth than the conventional approach. The proposed decoupling network is implemented and tested as a demonstration to confirm its performance. The measurement results indicate that the mutual coupling between the two antenna ports is lowered by about 47dB at the resonant frequency.

Publication: IEICE TRANSACTIONS on Communications Vol.E97-B No.7 pp.1395-1402

Publication Date: 2014/07/01

Publicized

Online ISSN: 1745-1345

DOI: 10.1587/transcom.E97.B.1395

Type of Manuscript: PAPER

Category: Antennas and Propagation

Authors

Shumo LI
Iwate University
Naoki HONMA
Iwate University

Keyword

decoupling network, mutual coupling, transmission lines, bridge resistance, array antenna

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Shumo LI, Naoki HONMA, "Decoupling Network Comprising Transmission Lines and Bridge Resistance for Two-Element Array Antenna" in IEICE TRANSACTIONS on Communications, vol. E97-B, no. 7, pp. 1395-1402, July 2014, doi: 10.1587/transcom.E97.B.1395.
Abstract: This paper presents a novel decoupling network consisting of transmission lines and a bridge resistance for a two-element array antenna and evaluates its performance through simulations and measurements. To decouple the antennas, the phase of the mutual admittance between the antenna ports is rotated by using the transmission lines, and a pure resistance working as a bridge resistance is inserted between the two antenna ports to cancel the mutual coupling. The simulation results indicate that the proposed decoupling network can provide a wider bandwidth than the conventional approach. The proposed decoupling network is implemented and tested as a demonstration to confirm its performance. The measurement results indicate that the mutual coupling between the two antenna ports is lowered by about 47dB at the resonant frequency.
URL: https://globals.ieice.org/en_transactions/communications/10.1587/transcom.E97.B.1395/_p

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@ARTICLE{e97-b_7_1395,
author={Shumo LI, Naoki HONMA, },
journal={IEICE TRANSACTIONS on Communications},
title={Decoupling Network Comprising Transmission Lines and Bridge Resistance for Two-Element Array Antenna},
year={2014},
volume={E97-B},
number={7},
pages={1395-1402},
abstract={This paper presents a novel decoupling network consisting of transmission lines and a bridge resistance for a two-element array antenna and evaluates its performance through simulations and measurements. To decouple the antennas, the phase of the mutual admittance between the antenna ports is rotated by using the transmission lines, and a pure resistance working as a bridge resistance is inserted between the two antenna ports to cancel the mutual coupling. The simulation results indicate that the proposed decoupling network can provide a wider bandwidth than the conventional approach. The proposed decoupling network is implemented and tested as a demonstration to confirm its performance. The measurement results indicate that the mutual coupling between the two antenna ports is lowered by about 47dB at the resonant frequency.},
keywords={},
doi={10.1587/transcom.E97.B.1395},
ISSN={1745-1345},
month={July},}

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TY - JOUR
TI - Decoupling Network Comprising Transmission Lines and Bridge Resistance for Two-Element Array Antenna
T2 - IEICE TRANSACTIONS on Communications
SP - 1395
EP - 1402
AU - Shumo LI
AU - Naoki HONMA
PY - 2014
DO - 10.1587/transcom.E97.B.1395
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E97-B
IS - 7
JA - IEICE TRANSACTIONS on Communications
Y1 - July 2014
AB - This paper presents a novel decoupling network consisting of transmission lines and a bridge resistance for a two-element array antenna and evaluates its performance through simulations and measurements. To decouple the antennas, the phase of the mutual admittance between the antenna ports is rotated by using the transmission lines, and a pure resistance working as a bridge resistance is inserted between the two antenna ports to cancel the mutual coupling. The simulation results indicate that the proposed decoupling network can provide a wider bandwidth than the conventional approach. The proposed decoupling network is implemented and tested as a demonstration to confirm its performance. The measurement results indicate that the mutual coupling between the two antenna ports is lowered by about 47dB at the resonant frequency.
ER -