Title :
60 GHz liquid crystal phased array using reflection-type phase shifter
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 novel compact microstrip reflection-type phase shifter controlled by liquid crystal is used to realize a slotted patch antenna array. This array has a beam steering capability in one dimension for 60 GHz applications. In this array each new phase shifter provides a differential phase shift of 79.4° at the center frequency of 63.5 GHz. The array elements (the slotted patch antennas) are coupled to the microstrip feed line through coupling slots. The final design comprises of a 4 × 1 slotted patch array capable of scanning up to 27° in the E-plane as the bias voltage on the liquid crystal changes from zero to saturation voltage.
Keywords :
liquid crystals; microstrip antenna arrays; microstrip lines; millimetre wave antenna arrays; millimetre wave phase shifters; slot antenna arrays; E-plane; array elements; beam steering capability; coupling slots; frequency 60 GHz; frequency 63.5 GHz; liquid crystal phased array; microstrip feed line; novel compact microstrip reflection-type phase shifter; slotted patch antenna array; Arrays; Feeds; Microstrip; Microstrip antenna arrays; Microstrip antennas; Patch antennas; Phase shifters; Liquid crystal (LC); millimeter-wave phase shifters; phased arrays;
Conference_Titel :
Antennas and Propagation (EuCAP), 2013 7th European Conference on
Conference_Location :
Gothenburg
Print_ISBN :
978-1-4673-2187-7
Electronic_ISBN :
978-88-907018-1-8
