Title :
Small sleeve dipole antenna using inner short stub
Author :
Seo-Cheol Jung ; Yoon-Seon Choi ; Jong-Myung Woo
Author_Institution :
Dept. of Radio Sci. & Eng., Chungnam Nat. Univ., Daejeon, South Korea
Abstract :
In this paper, design of a small sleeve dipole antenna is proposed. We use a coaxial-type short stub inside a metal sleeve, it makes impedance matching without change of the antenna size. Also a radiating element is modified into helical shape for miniaturization, changing input impedance is optimized due to mounting the short stub so that suppress leakage current on the coaxial cable. As a result, the small sleeve dipole antenna is miniaturized 34.8%, -20 dB return loss and omni-directional radiation pattern similar dipole antenna.
Keywords :
antenna radiation patterns; coaxial cables; dipole antennas; impedance matching; leakage currents; omnidirectional antennas; coaxial cable; coaxial-type short stub; impedance matching; inner short stub; leakage current suppression; metal sleeve; omnidirectional radiation pattern; small sleeve dipole antenna; Antenna radiation patterns; Dipole antennas; Gain; Microwave antennas; Microwave imaging; Microwave propagation; Microwave theory and techniques; Helical; Inner short stub; Miniaturization; Sleeve dipole antennas;
Conference_Titel :
Microwaves, Radar, and Wireless Communication (MIKON), 2014 20th International Conference on
Conference_Location :
Gdansk
Print_ISBN :
978-617-607-553-0
DOI :
10.1109/MIKON.2014.6899868
