A self-biased 3D tunable helical antenna in ferrite LTCC substrate
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A Self-Biased 3D Tunable Helical Antenna in Ferrite LTCC Substrate.pdf
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Conference PaperAuthors
Ghaffar, Farhan A.
Shamim, Atif

KAUST Department
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) DivisionElectrical Engineering Program
Date
2015-10-26Online Publication Date
2015-10-26Print Publication Date
2015-07Permanent link to this record
http://hdl.handle.net/10754/582939
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A ferrite LTCC based helical antenna which also provides magneto-static bias for its frequency tuning is presented in this work. The 3D helical-cum-bias winding design avoids the use of large external electromagnets which are traditionally used with ferrite based tunable antennas. This reduces the overall size of the design while making it efficient by getting rid of demagnetization effect experienced at the air-to-ferrite interface. RF choke and DC blocking capacitor, required to isolate the RF and DC passing through a single structure, are integrated within the multi-layer Ferrite LTCC substrate. Magnetostatic and microwave simulations have been carried out for the design optimization. The prototype antenna demonstrates a tuning range of 10 % around 13 GHz. An optimized design with an air cavity is also presented which reduces the biasing power requirement by 40 %.Citation
Abdul Ghaffar, F., & Shamim, A. (2015). A self-biased 3D tunable helical antenna in ferrite LTCC substrate. 2015 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting. doi:10.1109/aps.2015.7305534Conference/Event name
2015 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meetingae974a485f413a2113503eed53cd6c53
10.1109/APS.2015.7305534