Title :
Chip Antenna Using Three Branch Structures and Interdigitated Gap Feeding
Author :
Kim, Hojeong ; Choi, Hyengcheul ; Park, Sanguk ; Kim, Hyeongdong
Author_Institution :
Dept. of Electr. & Comput. Eng., Hanyang Univ., Seoul
Abstract :
This paper proposes chip antenna using three branch structures and interdigitated gap feeding method. Three branches consist of the spiral, straight monopole, and meander structure. Antenna has a compact size of 20 x 8 x 3.2 mm . Its size is minimized so that it can be easily installed to mobile handset. FR-4 (relative permittivity = 4.4) substrate is used in this chip antenna. In this paper, interdigitated gap feeding technique is proposed. By the adoption of this structure, the proposed antenna can be alleviated a reduction of bandwidth as well as easily controlled a resonant frequency. This antenna is designed to operate at penta band, GSM900/GPS/PCS/WCDMA/Bluetooth. VSWR and radiation patterns are measured by using a network analyzer and a anechoic chamber respectively.
Keywords :
antenna radiation patterns; mobile antennas; mobile handsets; monopole antennas; Bluetooth; GPS; GSM900; PCS; VSWR; WCDMA; anechoic chamber; branch structures; chip antenna; interdigitated gap feeding; meander structure; mobile handset; penta band; radiation patterns; spiral structure; straight monopole structure; Antenna feeds; Bandwidth; Bluetooth; Global Positioning System; Mobile handsets; Multiaccess communication; Permittivity; Personal communication networks; Resonant frequency; Spirals; chip antenna; gap feeding; interdigitated; multiband antenna;
Conference_Titel :
Microwave Conference, 2007. APMC 2007. Asia-Pacific
Conference_Location :
Bangkok
Print_ISBN :
978-1-4244-0748-4
Electronic_ISBN :
978-1-4244-0749-1
DOI :
10.1109/APMC.2007.4555055
