Title :
A dual spiral antenna for wideband capsule endoscope system
Author :
Lee, Sang Heun ; Chang, Kihun ; Yoon, Young Joong
Author_Institution :
Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul
Abstract :
In this paper, a dual spiral antenna for wideband capsule endoscope system is introduced. This dual resonance structure is composed of two different spiral elements and single feed wire connects these elements. When a spiral antenna is used as capsule endoscope system, a small sized antenna is required because capsule is small enough to be swallowed. The impedance bandwidth of the proposed antenna is 98 MHz and it has isotropic radiation pattern. Therefore, the proposed dual spiral antenna is suitable for wideband capsule endoscope system.
Keywords :
antenna feeds; antenna radiation patterns; endoscopes; multifrequency antennas; spiral antennas; dual resonance structure; dual spiral antenna; feed wire; impedance bandwidth; isotropic radiation pattern; wideband capsule endoscope system; Bandwidth; Biological materials; Broadband antennas; Dielectric constant; Endoscopes; Frequency; Humans; Microwave antennas; Resonance; Spirals; antenna; capsule endoscope system; dual; spiral; wideband;
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.2007.4554927
