From the Characteristic Modes Analysis to the Design of a Radiation Pattern Reconfigurable Antenna

Abstract:

A reconfigurable radiation pattern antenna is proposed. Preliminary investigations are performed with the characteristic modes analysis to understand the physical behavior of the antenna. The presented antenna has the ability to switch from a directional beam to a bidirectional pattern by turning PIN diodes from ON to OFF state. A varactor diode is placed at the top plate to adjust the frequency and match the impedance. A prototype has been designed, fabricated, and measured. Results show good radiation pattern agreement on XZ plane, S11 parameter of the antenna is below -10 dB in the common band from 5.45 to 5.55 GHz.

Año de publicación:

2019

Keywords:

• Varactor diode
• Characteristic modes
• Radiation pattern
• PIN diode
• Reconfigurable antenna

Fuente:

scopus