Title :
Reflectarray element using variable ring with slot on ground plane
Author :
Oh, Ser Wah ; Ahn, Chong H. ; Chang, Kuo-Pin
Author_Institution :
Dept. of Electr. & Comput. Eng., Texas A&M Univ., College Station, TX, USA
Abstract :
A novel structure using a variable microstrip ring with a slot ring on part of the ground plane is proposed as an auxiliary unit cell in a reflectarray. A progressive phase range larger than 682deg has been achieved by changing the sizes of the microstrip rings and adding slot rings on part of the ground plane. A K-band reflectarray has been fabricated and shows very good performance.
Keywords :
microstrip antenna arrays; reflector antennas; slot antenna arrays; K-band reflectarray; frequency 18 GHz to 27 GHz; reflectarray element; slot ring; variable microstrip ring;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2009.2693
