Title :
Printed scanning antenna array with SRR phase shifters
Author :
Boskovic, N. ; Jokanovic, Branka ; Nesic, A.
Author_Institution :
Inst. of Phys., Univ. of Belgrade, Belgrade, Serbia
Abstract :
We present a new design of frequency-scanning array antenna which consists of eight antiresonant dipoles fed by symmetrical microstrip line. Feeding network between dipoles is designed using left-handed unit cell that increases the frequency dependant phase difference between antenna elements. Left-handed unit cell consists of four split-ring resonators (SRRs) coupled with balanced microstrip line and via which short-circuits the feeding line. The beam scanning is found to be Δθ=34° with frequency variation in the range from 5.85GHz to 6.05GHz (±1.5% of the central frequency) and gain of 12dBi.
Keywords :
metamaterial antennas; microstrip antenna arrays; optical arrays; optical design techniques; optical metamaterials; optical phase shifters; optical resonators; SRR phase shifters; antenna element; antiresonant dipoles; balanced microstrip line; beam scanning; central frequency; feeding line; feeding network; frequency 5.85 GHz to 6.05 GHz; frequency dependant phase difference; frequency variation; frequency-scanning array antenna design; gain 12 dB; left-handed unit cell; printed scanning antenna array; short-circuits; split-ring resonators; symmetrical microstrip line; Antenna feeds; Arrays; Dipole antennas; Microstrip; Microstrip antenna arrays;
Conference_Titel :
Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), 2013 7th International Congress on
Conference_Location :
Talence
Print_ISBN :
978-1-4799-1229-2
DOI :
10.1109/MetaMaterials.2013.6808972
