Compact antenna apparatus for mobile communication system

Patent metadata

Field	Value
Publication number	US-10403974-B2
Application number	US-201715611792-A
Country	US
Kind code	B2
Filing date	Jun 2, 2017
Priority date	Dec 2, 2014
Publication date	Sep 3, 2019
Grant date	Sep 3, 2019

Abstract

A compact antenna apparatus for a mobile communication system includes: a radome having at least one frequency band radiating element provided therein; at least one phase shifter portion which is provided in an inner side of the radome and which is connected to the radiating element to adjust a tilting angle of the radiating element; and a rotary knob portion which is provided so as to be exposed to the outside of the radome and which is directly coupled to the phase shifter portion to drive a phase shifter.

First claim

The invention claimed is:

1. A compact antenna apparatus for a mobile communication system, comprising:
a radome having a plurality of radiating modules for at least one frequency band provided therein;
at least one phase shifter portion provided in the radome and connected to the plurality of radiating modules to change phases of signals provided to the plurality of radiating modules; and
a rotary knob portion provided so as to be exposed to an outside of the radome and directly coupled to the phase shifter portion to drive the phase shifter portion depending on a manual manipulation, wherein the plurality of radiating modules includes radiating elements for a common frequency band of a first frequency band and a second frequency band, and
the phase shifter portion includes a first phase shifter which receives an input signal of a first frequency band to distribute and provide signals having a phase difference from each other to the plurality of radiating modules and a second phase shifter which receives an input signal of a second frequency band to distribute and provide signals having a phase difference from each other to the plurality of radiating modules, and
the compact antenna apparatus further includes a plurality of frequency combiners which couple corresponding signals from output signals of the first phase shifter and the second phase shifter, and provide the corresponding signals to a corresponding radiating module among the plurality of radiating modules.

2. The compact antenna apparatus of claim 1 , wherein the compact antenna apparatus serves at least the first frequency band and the second frequency band, and
the rotary knob includes a first rotary knob for the first frequency band and a second rotary knob for the second frequency band.

3. The compact antenna apparatus of claim 1 , wherein the rotary knob is provided on at least one of a rear surface, a side surface, and a bottom surface of the radome.

4. The compact antenna apparatus of claim 1 , wherein in the radome, an installation position of the rotary knob is additionally provided with a dial scale that displays a phase variable amount.

5. An antenna, comprising:
a radome;
a first radiating module and a second radiating module for at least one frequency band provided in the radome;
a first phase shifter and a second phase shifter provided in the radome, wherein the first phase shifter and the second phase shifter are interconnected to the plurality of radiating modules;
a first rotary knob and a second rotary knob each provided on an outer surface of the radome, the first rotary knob and the second rotary knob being manually rotatable, wherein the first rotary knob is coupled to the first phase shifter to adjust a phase difference of a first pair of signals output from the first shifter based on a first manual manipulation, and the second rotary knob is coupled to the second phase shifter to adjust a phase difference of a second pair of signals output from the second shifter based on a second manual manipulation;
at least one combiner which receives the first pair of signals from the first phase shifter and the second pair of signals from the second phase shifter, and provide an output signal to at least one of the plurality of radiating modules based on the first pair of signals and the second pair of signals.

6. The antenna of claim 5 , wherein the first pair of signals have a first frequency band and the second pair of signals have a second frequency band,
and the first rotary knob is configured to adjust the phase difference o for the first frequency band and the second rotary knob is configured to adjust the phase difference for the second frequency band.

7. The antenna of claim 5 , wherein the rotary knob is provided on at least one of a rear surface, a side surface, and a bottom surface of the radome.

8. The antenna of claim 5 , wherein in the radome, an installation position of at least one of the first rotary knob and the second rotary knob is additionally provided with a dial scale that displays a phase variable amount.

9. A method of adjusting phase differences of an antenna:
wherein the antenna comprises:
a first radiating module and a second radiating module for at least one frequency band provided in a radome; and
a first phase shifter and a second phase shifter provided in the radome, wherein the first phase shifter and the second phase shifter are interconnected to the plurality of radiating modules, and the method comprises:
manually rotating at least one of a first rotary knob and a second rotary knob, each provided on an outer surface of the radome, wherein the first rotary knob is coupled to the first phase shifter, to adjust a phase difference of a first pair of signals output from the first shifter based on a first manual manipulation, and a phase difference of a second pair of signals output from the second shifter based on a second manual manipulation;
combining the first pair of signals from the first phase shifter and the second pair of signals from the second phase shifter to provide an output signal to at least one of the plurality of radiating modules based on the first pair of signals and the second pair of signals.

10. The method of claim 9 , wherein the first pair of signals have a first frequency band and the second pair of signals have a second frequency band,
and the method further comprises:
manually rotating the first rotary knob to adjust the phase difference for the first frequency band and manually rotating the second rotary knob to adjust the phase difference for the second frequency band.

11. The method of claim 9 , wherein the rotary knob is provided on at least one of a rear surface, a side surface, and a bottom surface of the radome.

12. The method of claim 9 , wherein in the radome, an installation position of at least one of the first rotary knob and the second rotary knob is additionally provided with a dial scale that displays a phase variable amount.

Assignees

• Kmw Inc

Inventors

• Moon Young-Chan
• Kim In-Ho
• Choi Oh-Seog
• Yang Hyoung-Seok
• Kim Sang-Hyeong
• Kim Hee
• Jung Hye-Mi

Classifications

• H01P1/184

  Strip line phase-shifters (H01P1/181, H01P1/185, H01P1/19 take precedence) · CPC title

• H01Q1/1228

  on a boom · CPC title

• H01Q1/246 Primary

  specially adapted for base stations · CPC title

• H01Q1/42 Primary

  Housings not intimately mechanically associated with radiating elements, e.g. radome · CPC title

• H01Q3/26

  varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture ({H01Q3/12,} H01Q3/22, H01Q3/24 take precedence) · CPC title