A Low-Profile Wideband LTCC Integrated Circularly Polarized Helical Antenna Array for Millimeter-Wave Applications

A low-profile wideband low-temperature co-fired ceramic integrated circularly polarized helical antenna array for millimeter-wave applications is presented. The major consideration of the antenna element design is to achieve good circular polarization and wide bandwidth when the helix has just about one turn which is beneficial for low profile. The turn is composed of 6×1/5-turn horizontal segments with straight-edge connections implemented by via holes. Then, a 2×2 helical antenna array with a dimension of 25×15×1.316 (0.15 λ0, is the wavelength at 35 GHz) mm3 was designed. The simulated results show that the proposed helical antenna array has a wide impedance bandwidth from 26.5 to 40 GHz for |S11| < -13 dB and AR for AR < 3 dB. The proposed antenna array was also measured and good agreement is achieved between the simulated and measured results.

Keywords

Millimeter-wave (mmW), circularly polarized, helical, array, low-temperature co-fired ceramic (LTCC)

Citation

Radioengineering. 2018 vol. 27, č. 2, s. 455-462. ISSN 1210-2512
https://www.radioeng.cz/fulltexts/2018/18_02_0455_0462.pdf

Document type

Peer-reviewed

Document version

Published version

Language of document

en

Document licence

Creative Commons Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/