Conformal antenna with reconfigurability of monopole-like and broadside patterns realized with polymer-conductive textile composite
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Date
2021-01
Authors
Simorangkir, Roy B. V. B.
Mohamadzade, Bahare
Lalbakhsh, Ali
Kumar, Sanjeev
Buckley, John L.
Bjorninen, Toni
O'Flynn, Brendan
Journal Title
Journal ISSN
Volume Title
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Published Version
Abstract
A conformal antenna with a capability of electronically switching between monopole-like and broadside radiation modes is presented. The design is based on a proximity-fed circular patch, loaded with a ring patch and four rectangular slots. The reconfigurability is achieved through activation and deactivation of the slots using PIN diodes, to switch between TM02(monopole-like) mode and perturbed TM02(broadside) mode. Polymer-conductive textile composite material is used to implement the antenna, with all antenna elements including DC biasing circuit and associated electronic components fully integrated inside the polymer. This configuration makes the antenna robust against deformation and harsh environment. Experimental investigations on the antenna RF performance including bending tests are presented. The measurements demonstrated that under bending, the antenna retained its reconfigurability with stable impedance and radiation performance relative to those of the flat case, i.e., 17.9% overlapping bandwidth of the two radiation modes and peak realized gains of 1.75 and 2.9 dBi at 5.2 GHz in monopole-like and broaside modes, respectively.
Description
Keywords
Broadside pattern , Conductive textile , Conformal , Flexible antenna , Microstrip antenna , Monopole-like pattern , Pattern reconfigurable , Polymer , Microwave antennas , Radio frequency , Antenna measurements , Wireless communication , Switches , Bending , Polymers
Citation
Simorangkir, R. B. V. B., Mohamadzade, B., Lalbakhsh, A., Kumar, S., Buckley, J. L., Bjorninen, T. and O'Flynn, B. (2021) 'Conformal antenna with reconfigurability of monopole-like and broadside patterns realized with polymer-conductive textile composite', 2021 51st European Microwave Conference, (EuMC) 2021 London, United Kingdom, 4-6 Apr 2022, pp. 63-66. doi: 10.23919/EuMC50147.2022.9784195
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