Considerations for Harmonics Distribution in Aperture-Tuned Inverted-F Antenna for Cellular Handheld Devices

Özdamar O, Weigel R, Hagelauer A, Solomko V (2020)

Publication Type: Journal article

Publication year: 2020

Journal

IEEE Transactions on Microwave Theory and Techniques Institute of Electrical and Electronics Engineers (IEEE)

Pages Range: 1-1

DOI: 10.1109/TMTT.2020.2996195

Abstract

An analysis of the harmonics distribution in the aperture-tuned inverted-F antenna (IFA) using the first-order transmission line model is presented. The analysis allows identifying local minimums for the second and third harmonics for a given use case, providing the mechanism for optimization of the nonlinear performance of an antenna system. The theoretical findings are verified on a hardware demonstrator, comprising a mechanically reconfigurable IFA and a single-pole single-throw (SPST)-based aperture tuning network. The aperture tuning network comprises a radio frequency (RF) high-voltage switch, including a voltage detector with low-harmonic feedback and a parallel inductor. The integrated circuit (IC) was fabricated in Infineon 130-nm dedicated RF switch technology. The hardware demonstrator enables the measurements of the impedance at the feed, harmonics, RF voltage along the radiating element, and impedance at aperture tuning port. The latter provides a mechanism for optimization of load impedance at integer multiplies of transmitted frequencies, which allows minimization of harmonic content generated by the tuning IC.

Authors with CRIS profile

Oguzhan Özdamar Lehrstuhl für Technische Elektronik Robert Weigel Lehrstuhl für Technische Elektronik Amelie Marietta Hagelauer

Involved external institutions

Infineon Technologies AG DE Germany (DE) Universität Bayreuth DE Germany (DE)

How to cite

APA:

Özdamar, O., Weigel, R., Hagelauer, A., & Solomko, V. (2020). Considerations for Harmonics Distribution in Aperture-Tuned Inverted-F Antenna for Cellular Handheld Devices. IEEE Transactions on Microwave Theory and Techniques, 1-1. https://dx.doi.org/10.1109/TMTT.2020.2996195

MLA:

Özdamar, Oguzhan, et al. "Considerations for Harmonics Distribution in Aperture-Tuned Inverted-F Antenna for Cellular Handheld Devices." IEEE Transactions on Microwave Theory and Techniques (2020): 1-1.

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