3D Inkjet Printed Helical Antenna with Integrated Lens

Muhammad Fahad Farooqui, Atif Shamim

Research output: Contribution to journalArticlepeer-review

41 Scopus citations


The gain of an antenna can be enhanced through the integration of a lens, although this technique has traditionally been restricted to planar antennas due to fabrication limitations of standard manufacturing processes. Here, through a unique combination of 3D and 2D inkjet printing of dielectric and metallic inks respectively, we demonstrate a lens that has been monolithically integrated to a non-planar antenna (helix) for the first time. Antenna measurements show that the integration of a Fresnel lens enhances the gain of a 2-turn helix by around 4.6 dB, which provides a peak gain of about 12.9 dBi at 8.8 GHz. The 3-dB axial ratio (AR) bandwidth of the antenna with the lens is 5.5%. This work also reports the complete characterization of this new process in terms of minimum features sizes and achievable conductivities. Due to monolithic integration of the lens through a fully printed process, this antenna configuration offers high gain performance by using a low cost and rapid fabrication technique. © 2016 IEEE.
Original languageEnglish (US)
Pages (from-to)800-803
Number of pages4
JournalIEEE Antennas and Wireless Propagation Letters
Issue number99
StatePublished - Aug 30 2016

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KAUST Repository Item: Exported on 2020-10-01


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