E-Textile Origami Dipole Antennas with Graded Embroidery for Adaptive RF Performance

Saad Alharbi, Shreyas Chaudhari, Abdullahi Inshaar, Hamil Shah, Chengzhe Zou, Ryan L. Harne, Asimina Kiourti

Research output: Contribution to journalArticlepeer-review

37 Scopus citations


We present a new class of reconfigurable origami-based antennas formed by embroidered conductive E-threads. State-of-the-art techniques used to realize origami antennas employ fragile conductive inks and/or copper tape. By contrast, the proposed approach brings forward enhanced robustness and durability as attributed to the inherent strength of the E-threads. To facilitate folding along the creases while also providing the radio frequency (RF) performance close to that of copper, a graded embroidery process is proposed. The grading scheme uses a density of 7 E-threads/mm on the antenna and a reduced density around the creases (as few as 1 E-thread/mm in this study). Proof-of-concept results for an accordion-based dipole antenna tunable from 760 to 1015 MHz show excellent agreement between simulations and measurements for all E-textile prototypes and the copper equivalent. Notably, embroidery density at the creases can be reduced to as low as 1 E-thread/mm without apparent degradation in the RF performance. Overall, the E-textile origami antennas may transform opportunities for reconfigurable antennas to be leveraged in wearable and structural applications.

Original languageEnglish (US)
Article number8470160
Pages (from-to)2218-2222
Number of pages5
JournalIEEE Antennas and Wireless Propagation Letters
Issue number12
StatePublished - Dec 2018

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering


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