79 GHz Slot Antennas Based on Substrate Integrated Waveguides (SIW) in a Flexible Printed Circuit Board
2009 (English)In: IEEE Transactions on Antennas and Propagation, ISSN 0018-926X, E-ISSN 1558-2221, Vol. 57, no 1, 64-71 p.Article in journal (Refereed) Published
The design, fabrication and characterization of 79 GHz slot antennas based on substrate integrated waveguides (SIW) are presented in this paper. All the prototypes are fabricated in a polyimide flex foil using printed circuit board (PCB) fabrication processes. A novel concept is used to minimize the leakage losses of the SlWs at millimeter wave frequencies. Different losses in the SlWs are analyzed. SIW-based single slot antenna, longitudinal and four-by-four slot array antennas are numerically and experimentally studied. Measurements of the antennas show approximately 4.7%, 5.4% and 10.7% impedance bandwidth (S-11 = -10 dB) with 2.8 dBi, 6.0 dBi and 11.0 dBi maximum antenna gain around 79 GHz, respectively. The measured results are in good agreement with the numerical simulations.
Place, publisher, year, edition, pages
2009. Vol. 57, no 1, 64-71 p.
Flexible printed circuit boards, microstrip-to-SIW transition, millimeter wave, slot array antenna, substrate integrated waveguides (SIW)
Research subject Engineering Science with specialization in Microwave Technology
IdentifiersURN: urn:nbn:se:uu:diva-96880DOI: 10.1109/TAP.2008.2009708ISI: 000264246700008OAI: oai:DiVA.org:uu-96880DiVA: diva2:171608