Advanced Liquid Crystal Polymer Substrate for Flexible Antenna Design

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Year : 2026 | Volume : 14 | 02 | Page :
    By

    Jitender Kumar,

  • Priyanka Gupta,

  • Jatin Gaur,

  • Neera Aggarwal,

  • Yogita Arora,

  • Sourabh Rana,

  1. Assistant Professor, Department of Electronics and Communication Engineering, Bharati Vidyapeeth’s College of Engineering, New Delhi, India
  2. Assistant Professor, Department of Electronics and Communication Engineering, Bharati Vidyapeeth’s College of Engineering, New Delhi, India
  3. Assistant Professor, Department of Electronics and Communication Engineering, Bharati Vidyapeeth’s College of Engineering, New Delhi, India
  4. Associate Professor, Department of Electronics and Communication Engineering, Bharati Vidyapeeth’s College of Engineering, New Delhi, India
  5. Associate Professor, Department of Electronics and Communication Engineering, Bharati Vidyapeeth’s College of Engineering, New Delhi, India
  6. Assistant Professor, Department of Electronics and Communication Engineering, Bharati Vidyapeeth’s College of Engineering, New Delhi, India

Abstract

A type of thermoplastic polymers known as liquid crystal polymers (LCPs) is frequently used to package millimeter (mm)-wave, microwave, and radio frequency (RF) integrated circuits that operate at frequencies as high as 60GHz. LCPs are of prospective relevance as packaging material for advanced circuits at mm-wave frequencies due to their appealing electrical, thermal, and mechanical qualities and comparatively low cost. Flexible and conformal antennas are made possible by LCP’s exceptional mechanical flexibility and endurance. Applications in wearable technology, flexible electronics, and small communication systems can benefit from this feature. The literature review indicates that existing flexible antennas for millimeter-wave applications either have limited impedance bandwidth or poor impedance matching, and no design has been reported that successfully accomplishes both at the same time. This work presents a flexible antenna design for millimeter-wave applications utilizing a single-port coplanar waveguide (CPW) feed mechanism on an LCP substrate. The proposed antenna has a dimension of 22.5×22.5×0.1 , operating band of 4.879-5.513GHz, 8.394-10.006GHz, and 13.864-39.892GHz. The simulated results show that the impedance bandwidth (S11 < −10dB) covers three frequency bands whose fractional bandwidth of 12.21%, 17.51%, and 96.8% and the antenna exhibits an average 5dBi peak gain and stable broadside radiation at 5.2, 9.2, and 26.9 GHz, indicating dependable multiband directional performance with low distortion. Moreover, antenna is simulated at bending radii of 10 mm, 30 mm, and 50 mm in order to assess its flexibility. Reliable performance under bending conditions is confirmed by the results, which show a slight shift in resonant frequency and steady impedance matching.

 

Keywords: Millimeter (mm)-wave, liquid crystal polymer (LCP), radio frequency, coplanar waveguide, polymers.

How to cite this article:
Jitender Kumar, Priyanka Gupta, Jatin Gaur, Neera Aggarwal, Yogita Arora, Sourabh Rana. Advanced Liquid Crystal Polymer Substrate for Flexible Antenna Design. Journal of Polymer & Composites. 2026; 14(02):-.
How to cite this URL:
Jitender Kumar, Priyanka Gupta, Jatin Gaur, Neera Aggarwal, Yogita Arora, Sourabh Rana. Advanced Liquid Crystal Polymer Substrate for Flexible Antenna Design. Journal of Polymer & Composites. 2026; 14(02):-. Available from: https://journals.stmjournals.com/jopc/article=2026/view=241350


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Ahead of Print Subscription Original Research
Volume 14
02
Received 17/03/2026
Accepted 26/03/2026
Published 29/04/2026
Publication Time 43 Days
2

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