US 2009/0153403 A1 · CIRCULARLY-POLARIZED DIELECTRIC RESONATOR ANTENNA

Abstract

The present invention relates to a circularly-polarized dielectric resonator antenna (DRA). The antenna comprises a substrate, a Wilkinson power divider, a phase shifter, a ground plane and a dielectric resonator, wherein the phase shifter is connected to the Wilkinson power divider. Besides, the dielectric resonator is disposed on the ground plane, and includes a dielectric main body and a well disposed above the substrate. Additionally, the antenna is adopted to increase the linear radiation bandwidth by utilizing the well, and transceives a circularly-polarized electromagnetic wave by utilizing the Wilkinson power divider. Consequently, the circularly-polarized dielectric resonator antenna can be applied in the fields of satellite communication, Worldwide Interoperability for Microwave Access (WiMAX), and wireless communication.

Claims9

Dependent claims

A circularly-polarized dielectric resonator antenna (DRA), comprising:

a substrate, including a first surface and a second surface;
a Wilkinson power divider, formed on the first surface;
a phase shifter, formed on the first surface and having a main microstrip line, a reference microstrip line, a first microstrip line, and a second microstrip line, wherein the main microstrip line and the reference microstrip line are respectively connected to two output ports of the Wilkinson power divider, and the first microstrip line and the second microstrip line are respectively connected to the main line and the reference line;
a ground plane, formed on the second surface and comprising a first hollow portion and a second hollow portion;
and
a dielectric resonator, including a main body and a well, disposed above the ground plane.

3 more elements

Dependencies are inferred from the claim text.

Circularly-polarized dielectric resonator antenna

Life of this patent

Circularly-polarized dielectric resonator antenna

Life of this patent

Abstract

Claims9