Title :
Liquid crystal based patch antenna array for 60 GHz applications
Author :
Deo, P. ; Mirshekar-Syahkal, D. ; Seddon, L. ; Day, S.E. ; Fernandez, F.A.
Author_Institution :
Sch. of Comput. Sci. & Electron. Eng., Univ. of Essex, Colchester, UK
Abstract :
A patch antenna array with beam steering capability in one dimension for 60 GHz applications is presented. In this array the phase shifters are liquid crystal based meander lines, each providing a maximum differential phase shift of 38°. The array elements (the patch antennas) are coupled to the microstrip feed line through coupling gaps. These gaps are adjusted in order to uniformly excite the antenna patches. The final design comprises of a 4 × 1 patch array, which is able to scan up to 9° in the E-plane as the bias on the liquid crystal changes from zero to saturation voltage.
Keywords :
liquid crystals; microstrip antenna arrays; millimetre wave antenna arrays; millimetre wave phase shifters; E-plane; antenna patches; array elements; beam steering capability; coupling gaps; frequency 60 GHz; liquid crystal changes; liquid crystal-based meander lines; liquid crystal-based patch antenna array; maximum differential phase shift; microstrip feed line; patch array; phase shifters array; zero-to-saturation voltage; Arrays; Couplings; Feeds; Microstrip; Patch antennas; Phase shifters; Liquid crystal (LC); millimeter-wave phase shifters; phased arrays;
Conference_Titel :
Radio and Wireless Symposium (RWS), 2013 IEEE
Conference_Location :
Austin, TX
Print_ISBN :
978-1-4673-2929-3
Electronic_ISBN :
2164-2958
DOI :
10.1109/RWS.2013.6486663
