Design of composite right/left-handed (CRLH) transmission line (TL) based leaky-wave array antenna

• Main Authors: Wan Nordin, Mimi Aminah, Abd El-Raouf, Hany E., Alam, A. H. M. Zahirul
• Format: Conference or Workshop Item
• Language: English
• Published: 2009
• Subjects: TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://irep.iium.edu.my/11913/1/Design_of_Composite_Right-Left-Handed_%28CRLH%29_Transmission_Line_%28TL%29.pdf; http://irep.iium.edu.my/11913/; http://www.ieee.org/conferences_events/conferences/conferencedetails/index.html?Conf_ID=16231

A leaky-wave array antenna based on the composite right/left-handed (CRLH) transmission line (TL) model is presented. The array, which consists of 3 elements arranged in a 3x1 configuration had a footprint of 73.2 x 23.8 mm. Investigation of the unit cell that makes up the single point sources of the array and the current distribution surround the array, shows that it is a leaky-wave structure between 2 GHz to 3.1 GHz. The array structure, which resonated at 4 frequencies, 1.9, 2.15, 3.16 and 4.32 GHz, was able to increase the gain of the CRLH TL based antenna at all the frequencies by an average of 2 dB at each of the resonant frequency.