US 12,771,029 B2 · High gain planar dipole antenna with decade gain-bandwidth

Abstract

Disclosed is a novel dipole antenna design having symmetric poles, each pole having a half circle resonator and an oval resonator that are electrically connected by a straight choke section; the dipole shape permits a wideband dipole response with a transition frequency between a lower and upper frequency band. A cross bar and capacitively-coupled stubs tune at the transition frequency to create a continuous impedance and gain-bandwidth. The dipole and the crossbar and stubs are formed on opposite surface or sides of a substate. Data demonstrates the novel dipole antenna can exceed the gain-bandwidth of the state-of-the-art bowtie by approximately 5 times, that is, its gain-bandwidth is 10:1 versus the standard bowtie gain-bandwidth of 2:1 at broadside.

Claims20

Dependent claims

A high gain planar dipole antenna with decade gain-bandwidth comprising:

a substate having a front surface and a rear surface, wherein the front surface comprising a dipole includes two poles which are electrically connected to one another at a feed point of the dipole antenna in a symmetric arrangement about an imaginary line along a plane which lies with the feed point of the dipole antenna, each pole comprising:
a terminal section connected to the feed point;
a half circular resonator section having a substantially half circle shape behind and connected to the terminal section;
a choke section having a constant cross-sectional width behind and connected to the half circular resonator section;
and
an asymmetric oval resonator section behind and connected to the choke section;
and
the rear surface comprising:
a cross bar which runs coincident to the imaginary line;
and
a pair of tuning stubs provided on each side of the cross bar.

8 more elements

Dependencies are inferred from the claim text.

High gain planar dipole antenna with decade gain-bandwidth

Life of this patent

High gain planar dipole antenna with decade gain-bandwidth

Life of this patent

Abstract

Claims20