New Approach in Designing Resonance Cavity High-Gain Antenna Using Nontransparent Conducting Sheet as the Superstrate

作者：Dutta Koushik^*; Guha Debatosh; Kumar Chandrakanta; Antar Yahia M M

来源：IEEE Transactions on Antennas and Propagation, 2015, 63(6): 2807-2813.

DOI：10.1109/TAP.2015.2415518

• Dielectric resonator antenna (DRA)
• high-gain antenna
• resonance cavity antenna (RCA)
• resonance gain antenna

A resonance cavity antenna (RCA) has been explored employing nontransparent solid metal sheet as superstrate which, to the best of our knowledge, is reported for the first time. The proposed configuration is much advantageous in terms of design, simplicity, structural stability, fabrication, and cost without compromising in gain, efficiency, and bandwidth. A probe-fed dielectric resonator antenna (DRA) with epsilon(r) = 10 has been used as the primary radiator. Proposed RCA bearing overall size 1.1 lambda x 1.1 lambda x 0.6 lambda promises for large impedance bandwidth (similar to 23%) with considerably high gain (11.8-12.2 dBi). The superstrate size is relatively compact compared to its semitransparent versions, investigated earlier. Present design has been experimentally validated indicating as much as 12 dBi peak gain with more than 96.5% efficiency.

• 出版日期2015-6