Title :
Composite right/left-handed transmission line leaky-wave antenna using LTCC technology
Author :
Nam, Sung-Soo ; Lee, Hong-Min
Author_Institution :
Dept. of Electron. Eng., Kyonggi Univ., Suwon
Abstract :
In this paper, a composite right/left-handed (CRLH) transmission line (TL) structure is used for the design of broadband leaky-wave antenna, using Low temperature co-fired ceramic (LTCC) technology. The proposed CRLH TL unit cell consists of a metal-insulator-metal (MIM) capacitor to realize left-handed (LH) series capacitance and a shorted-stub shunt arm to realize LH shunt inductance and total three cells are used for the antenna design. The proposed antenna has very compact size (total size; 24.2 mm times 25 mm, unit cell size p is 7.2 mm, p ap lambdag/9). This antenna is designed for wide bandwidth and omni-directional radiation pattern. The measured result shows that the prototype antenna has wide impedance band-width of 100%, near omni directional radiation pattern and maximum gain of -0.3 dBi. The proposed small antenna structure can be applied to RF/MMIC applications.
Keywords :
MIM devices; antenna radiation patterns; broadband antennas; ceramic packaging; leaky wave antennas; transmission lines; LTCC technology; RF-MMIC applications; broadband leaky-wave antenna; composite right-handed transmission line; left-handed series capacitance; left-handed transmission line; metal-insulator-metal capacitor; omnidirectional radiation pattern; Antenna measurements; Antenna radiation patterns; Bandwidth; Capacitance; Ceramics; Inductance; Leaky wave antennas; MIM capacitors; Metal-insulator structures; Temperature;
Conference_Titel :
Antenna Technology, 2009. iWAT 2009. IEEE International Workshop on
Conference_Location :
Santa Monica, CA
Print_ISBN :
978-1-4244-4395-6
Electronic_ISBN :
978-1-4244-4396-3
DOI :
10.1109/IWAT.2009.4906891
