Reflector antenna and antenna alignment method

Patent metadata

Field	Value
Publication number	US-10637153-B2
Application number	US-201815962769-A
Country	US
Kind code	B2
Filing date	Apr 25, 2018
Priority date	Oct 26, 2015
Publication date	Apr 28, 2020
Grant date	Apr 28, 2020

Abstract

Embodiments of the present disclosure provide a reflector antenna and an antenna alignment method. The reflector antenna includes: a feed array, including N feeds, where N is an integer greater than 1; a reflector, configured to: reflect a signal from the feed array or reflect a signal to the feed array; and M radio frequency channels, where the radio frequency channel includes at least one of an adjustable gain amplifier or a phase shifter, configured to control a signal, M is an integer greater than 1 and less than N, each radio frequency channel corresponds to one of the N feeds, a correspondence between the radio frequency channel and the feed is changeable, and the radio frequency channel transmits or receives a signal by using a corresponding feed.

First claim

What is claimed is:

1. A reflector antenna, comprising:
a feed array comprising N feeds, wherein N is an integer greater than 1;
a reflector configured to:
reflect a signal from the feed array, or
reflect a signal to the feed array; and

M radio frequency channels each comprising at least one of an adjustable gain amplifier and a phase shifter, configured to control a signal, each radio frequency channel corresponding to a one of the N feeds, the correspondence between the radio frequency channels and the N feeds is changeable, and each radio frequency channel for transmitting or receiving a signal using the corresponding N feeds, and wherein M is an integer greater than 1 and less than N, wherein at least one of the M radio frequency channels comprises a transmit radio frequency channel comprising the phase shifter configured to control a phase of a to-be-transmitted signal and a transmit radio frequency channel comprising the adjustable gain amplifier configured to control an amplitude of a to-be-transmitted signal.

2. The reflector antenna according to claim 1 , further comprising:
M single-pole multi-throw switches, wherein one radio frequency channel corresponds to one single-pole multi-throw switch that corresponds to a number of the N feeds, the radio frequency channel is connected to a single-pole end of the single-pole multi-throw switch and the number of the N feeds are connected to multi-throw ends of the single-pole multi-throw switch, and a correspondence between the radio frequency channel and the number of the N feeds is controlled by the single-pole multi-throw switch.

3. The antenna according to claim 2 , wherein the plurality of feeds are connected to the multi-throw ends of the single-pole multi-throw switch by using a cross waveguide.

4. The antenna according to claim 1 , wherein:
a quantity of the M radio frequency channels that comprise a transmit radio frequency channel is O, and O is an integer greater than 1 and less than or equal to M; and
the antenna further comprises:
a divider, configured to divide to-be-transmitted signals into O channels of signals and send the O channels of signals to the O transmit radio frequency channels respectively.

5. The antenna according to claim 1 , wherein at least one of the M radio frequency channels comprises a receive radio frequency channel comprising the phase shifter configured to control a phase of a received signal.

6. The antenna according to claim 1 , wherein at least one of the M radio frequency channels comprises a receive radio frequency channel comprising the adjustable gain amplifier configured to control an amplitude of a received signal.

7. The antenna according to claim 5 , wherein:
a quantity of the M radio frequency channels that comprise a receive radio frequency channel is P, and P is an integer greater than 1 and less than or equal to M; and
the antenna further comprises:
a combiner, configured to combine received signals of the P receive radio frequency channels.

Assignees

• Huawei Tech Co Ltd

Inventors

• Luo Yanxing
• Long Hao
• Tang Fusheng
• Zeng Zhuo

Classifications

• H01Q3/2605

  Array of radiating elements provided with a feedback control over the element weights, e.g. adaptive arrays · CPC title

• H01Q21/0025

  Modular arrays · CPC title

• H01Q19/17 Primary

  the primary radiating source comprising two or more radiating elements (H01Q19/15, H01Q25/00 take precedence) · CPC title

• H01Q3/2658 Primary

  Phased-array fed focussing structure · CPC title