# US 5,710,569 A · Antenna system having a choke reflector for minimizing sideward radiation

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- Number: US 5,710,569 A
- Document ID: US5710569A
- Status: Granted
- Kind: A
- Application number: 08/428,012
- Filed: 1995-04-25
- Granted: 1998-01-20
- Earliest claimed: 1995-03-03
- Assignees: Ace Antenna Corp.
- Inventors: Jung Kun Oh; Yong Hee Lee; Jae Ho Lee; Jung Sik Kim; Byung Ill Oh
- Web page: https://patentgrep.com/patent/US5710569A

## CPC

- H01Q 19/108: {Combination of a dipole with a plane reflecting surface (H01Q19/106 takes precedence; strip line H01Q9/065)}
- H01Q 3/20: wherein the primary active element is fixed and the reflecting device is movable
- H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72)

## Abstract

A antenna system of the present invention comprises a radiator for radiating a radio frequency, which is converted from electric power, and which has a impedance matching unit and a power divider; a first reflector for reflecting and filtering the radio frequency; and at least one second reflector for filtering the radio frequency radiated in the sideward direction of the antenna system, which is vertically attached to the first reflector, and is able to be moved in a horizontal direction.

## Claims

### Claim 1

An antenna system comprising:
a radiating means for radiating a radio frequency, which is converted from electric power, and which has an impedance matching unit and a power divider;
a first reflecting means for reflecting and filtering said radio frequency; and
at least one second reflecting means for filtering said radio frequency radiated in a sideward direction of said antenna system, which is vertically attached to said first reflecting means, and is able to be moved in a horizontal direction.

### Claim 2 (depends on 1)

An antenna system in accordance with claim 1, wherein said antenna system further comprises a snow-proof cover to protect internal elements from external conditions.

### Claim 3 (depends on 1)

An antenna system in accordance with claim 1, wherein said first reflecting means is folded to an angle of 45.degree. to 90.degree..