Dual-Band and Polarization-Flexible Cavity Antenna Based on Substrate Integrated Waveguide

作者：Lee Hanseung^*; Sung Youngje^*; Wu Chung Tse Michael^*; Itoh Tatsuo^*

来源：IEEE Antennas and Wireless Propagation Letters, 2016, 15: 488-491.

DOI：10.1109/LAWP.2015.2453993

• Dual-band
• polarization
• slot antennas
• substrate integrated waveguide

In this letter, a novel dual-band and polarization-flexible substrate integrated waveguide (SIW) cavity antenna is proposed. The SIW cavity used for the antenna is excited by a conventional TE120 mode for its first resonance. With the intervention of the slot, a second resonance excited by a modified-TE120 mode is also generated, thereby providing a broadside radiation pattern at two resonant frequencies. In addition, the proposed antenna has two orthogonal feeding lines. Therefore, it is possible to provide any six major polarization states. In this letter, three major polarization cases are simulated and compared to measured results. Since modern communication systems require multifunctional antennas, the proposed antenna concept is a promising candidate.

• 出版日期2016