IP Library › Granted Patent US 12,237,588
Granted Patent B2
US 12,237,588 · App. 18/641,268 · Granted Feb 25, 2025

5G ultra-wideband dipole antenna

Inventors: Daniel Wang (Sydney, AU); Peisheng Qian (Zhang Jia Gang, CN)
Assignee: Airgain, Inc.
H01Q5/335H01Q1/243H01Q9/30H01Q21/0043H01Q21/064
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Quick Facts
Patent No.
US 12,237,588
App. No.
18/641,268
Granted
Feb 25, 2025
Kind
B2
Abstract

An ultra-wide band dipole antenna assembly for transmitting or receiving electromagnetic signals is disclosed herein. The antenna assembly comprises a dipole antenna element and coplanar waveguide feeding network. The dipole antenna delivers the ultra-wide band matching through a pre-determined arrangement after the coplanar waveguide feeding network is applied.

Claims (14)

1. An ultra-wide band dipole antenna assembly for transmitting or receiving electromagnetic signals, the ultra-wide band dipole antenna assembly comprising:

a first quarter wavelength conductor element;

a second quarter wavelength conductor element comprising a main body with a first collar and a second collar extending from the main body toward a first end of the first quarter wavelength conductor element; and

a coplanar strip line connected to the first quarter wavelength conductor element;

wherein the first quarter wavelength conductor element, the second quarter wavelength conductor element with first collar and second collar, and the coplanar strip line form a coplanar waveguide feeding network.

2. The ultra-wide band dipole antenna assembly according to claim 1 further comprising a slot in the main body of the second quarter wavelength conductor element.

3. The antenna assembly according to claim 2 further comprising a second slot in the main body of the second quarter wavelength conductor element, wherein the second slot has a length ranging from 25 mm to 35 mm and a width ranging from 10 mm to 12 mm.

4. The ultra-wide band dipole antenna assembly according to claim 1 wherein the coplanar waveguide feeding network transforms an initial impedance of 73 Ohms into a 50 Ohms impedance.

5. The ultra-wide band dipole antenna assembly according to claim 1 further comprising predetermined spacing offsets S 1 and S 2 between the first quarter wavelength conductor element and the second quarter wavelength conductor element configured to widen a matching bandwidth of the antenna assembly.

6. The antenna assembly according to claim 5 wherein the offset S 1 has a length ranging from 10 mm to 13 m, and the offset S 2 has a length ranging from 8 mm to 10 mm.

7. The ultra-wide band dipole antenna assembly according to claim 1 wherein the first collar has a greater length than the second collar.

8. The ultra-wide band dipole antenna assembly according to claim 7 wherein the first collar has a length ranging from 9 mm to 11 mm, and the second collar has a length ranging from 5 mm to 7 mm.

9. The ultra-wide band dipole antenna assembly according to claim 1 wherein the second quarter wavelength conductor element has a length greater than a length of the first quarter wavelength conductor element.

10. The antenna assembly according to claim 1 wherein the ultra-wide band dipole antenna assembly operates in a frequency band range from 600-960 MegaHertz (MHz).

Continuity (4)
Continuation 18224539 · Jul 20, 2023
Continuation 17359779 · Jun 28, 2021
Provisional Application 63047242 · Jul 1, 2020
Related Publication 20240266730A1 · Aug 8, 2024
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