KR200407013Y1 - Stepped ground plane to increase frequency bandwidth in linear array patch antenna - Google Patents

Stepped ground plane to increase frequency bandwidth in linear array patch antenna Download PDF

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Publication number
KR200407013Y1
KR200407013Y1 KR2020050021513U KR20050021513U KR200407013Y1 KR 200407013 Y1 KR200407013 Y1 KR 200407013Y1 KR 2020050021513 U KR2020050021513 U KR 2020050021513U KR 20050021513 U KR20050021513 U KR 20050021513U KR 200407013 Y1 KR200407013 Y1 KR 200407013Y1
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KR
South Korea
Prior art keywords
antenna
ground plane
patch
linear array
stepped
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KR2020050021513U
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Korean (ko)
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안병철
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안병철
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Publication of KR200407013Y1 publication Critical patent/KR200407013Y1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
    • H01Q1/46—Electric supply lines or communication lines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/48—Earthing means; Earth screens; Counterpoises
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna

Abstract

본 고안은 선형배열 패치 안테나에서 주파수 대역폭을 증가시키기 위한 계단형 접지판에 관한 것이다. 종래의 방식에서는 패치와 급전선을 동일한 두께의 얇은 기판에 구현한 관계로 안테나가 협대역 특성을 보인다. 대역폭을 증가시키는 방안으로 본 고안에서는 급전선과 접지면 사이의 간격은 그대로 두고 패치와 접지면의 간격을 증가시키는 계단형 접지판을 사용한다. 본 고안을 적용할 경우 접지판의 구조만 간단히 변형하여 선형배열 패치 안테나의 대역폭을 크게 증가시키는 효과를 얻을 수 있다.The present invention relates to a stepped ground plane for increasing the frequency bandwidth in a linear array patch antenna. In the conventional method, the antenna exhibits narrow band characteristics because the patch and the feed line are implemented on a thin substrate having the same thickness. In order to increase the bandwidth, the present invention uses a stepped ground plate that increases the gap between the patch and the ground plane while leaving the gap between the feeder and the ground plane intact. When the present invention is applied, the structure of the ground plane patch antenna can be greatly increased by simply modifying the structure of the ground plane.

안테나, 안테나 대역폭 증대, 선형배열 안테나, 패치 안테나, 인쇄형 안테나Antenna, antenna bandwidth increase, linear array antenna, patch antenna, printed antenna

Description

선형배열 패치 안테나에서 주파수 대역폭을 증가시키기 위한 계단형 접지판 {A stepped ground plane for increasing the frequency bandwidth of the linear array of patch antennas}A stepped ground plane for increasing the frequency bandwidth of the linear array of patch antennas}

도 1는 종래의 구성을 보인 안테나의 상면도.1 is a top view of an antenna showing a conventional configuration.

도 2는 종래의 구성을 보인 안테나의 단면도.2 is a cross-sectional view of an antenna showing a conventional configuration.

도 3는 본 고안의 구성을 보인 안테나의 상면도.Figure 3 is a top view of the antenna showing the configuration of the present invention.

도 4는 본 고안의 구성을 보인 안테나의 단면도.Figure 4 is a cross-sectional view of the antenna showing the configuration of the present invention.

*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

1 : 안테나 구현을 위한 기판1: Substrate for Antenna Implementation

2 : 패치 안테나2: patch antenna

3 : 패치 안테나에 전파 에너지를 공급하기 위한 급전선로3: feeder line for supplying radio wave energy to the patch antenna

4 : 기판의 접지면4: ground plane of substrate

5 : 저손실 유전체 지지물5: low loss dielectric support

6 : 패치의 대역폭을 증가시키기 위한 접지구조6: Ground structure to increase the bandwidth of the patch

본 고안은 특히 마이크로파 대역에서 널리 사용되는 인쇄회로 형태의 선형배열 패치 안테나의 대역폭을 향상시키기 위한 계단형 접지판(6)에 관한 것이다. 기존 안테나에서는 도 1과 같이 패치(2)와 급전선(3)이 얇은 유전체(1)에 구현된다. 급전선(3)을 구현하기 위해서는 유전체(1) 두께가 사용하는 전파의 파장보다 매우 작아야 한다. 이 경우 패치(2)와 기판의 접지판(4)과의 간격이 파장에 비해 매우 작은 관계로 안테나의 주파수 대역폭이 보통 1%∼3% 정도로 매우 작게 된다.The present invention particularly relates to a stepped ground plane 6 for improving the bandwidth of a linear array patch antenna in the form of a printed circuit widely used in the microwave band. In the existing antenna, the patch 2 and the feed line 3 are implemented in the thin dielectric 1 as shown in FIG. 1. In order to implement the feed line 3, the thickness of the dielectric 1 should be much smaller than the wavelength of radio waves used. In this case, since the distance between the patch 2 and the ground plate 4 of the substrate is very small compared to the wavelength, the frequency bandwidth of the antenna is very small, usually about 1% to 3%.

본 고안에서는 이러한 협대역 문제를 해결하기 위해 도 2에서 보인 것과 같이 급전선(3)을 지지하기 위한 유전체(5b)를 얇게 하고 패치(2)를 지지하기 위한 유전체(5a)의 두께는 크게 증가시킨 계단형 접지판(6)을 사용함으로써 선형 배열 패치 안테나의 대역폭이 크게 증가되도록 한다. 대역폭이 증가하는 정도는 동작 주파수가 주어질 경우 패치(2)를 지지하기 위한 유전체(5a) 두께에 따라 다르며 기존 방법의 경우보다 안테나 대역폭을 5∼10배 증가시킬 수 있다.In the present invention, in order to solve this narrowband problem, as shown in FIG. The use of the stepped ground plane 6 allows the bandwidth of the linear array patch antenna to be greatly increased. The degree to which the bandwidth is increased depends on the thickness of the dielectric 5a for supporting the patch 2, given the operating frequency, and can increase the antenna bandwidth by 5 to 10 times compared to the conventional method.

본 고안의 구성은 선형배열 패치 안테나에 있어서 도 1과 같은 종래의 평면 형태 접지판(4)을 변형하여 계단형 접지판(6)을 사용함으로써 안테나의 대역폭을 증가시키는 것이다. 본 고안이 적용된 전체적인 선형배열 패치 안테나가 도 2에 나타나 있으며 계단형 접지판(6), 패치 지지용 유전체(5a), 급전선 지지용 유전체(5b), 패치(3), 급전선(4)으로 구성되어 있다. 계단형 접지판(6) 위에 패치 지지용 유전체(5a)와 급전선 지지용 유전체(5b)가 위치하게 되며 이것들을 접착제를 사용하여 계단형 접지판(6)과 결합할 수 있다. 패치(3)와 급전선(4)은 플라스틱 필름에 증착된 도체막을 사용하여 제작되며 패치 지지용 유전체(5a)와 급전선 지지용 유전체(5b) 위에 각각 위치한다. 급전선 지지용 유전체(5b)의 두께는 기존 안테나의 경우와 동일하게 유지하면서 패치 지지용 유전체(5a)의 두께를 증가시킬 수 있게 되어 대역폭 증가 효과를 얻을 수 있다.The configuration of the present invention is to increase the bandwidth of the antenna by using a stepped ground plate 6 by modifying the conventional planar ground plate 4 as shown in Figure 1 in the linear array patch antenna. An overall linear array patch antenna to which the present invention is applied is shown in FIG. It is. The patch support dielectric 5a and the feeder support dielectric 5b are positioned on the stepped ground plate 6 and can be combined with the stepped ground plate 6 using an adhesive. The patch 3 and the feeder line 4 are fabricated using a conductor film deposited on a plastic film and are positioned on the patch support dielectric 5a and the feeder support dielectric 5b, respectively. The thickness of the feed line support dielectric 5b may be increased while maintaining the same thickness as that of the existing antenna, thereby increasing bandwidth.

본 고안을 적용하여 선형 배열 패치 안테나의 단점인 협대역 특성을 극복할 수 있다. 본 고안은 단일 패치 안테나에 뿐 만 아니라 선형배열 패치 안테나에 적용하여 주파수 대역폭 증가 효과를 얻을 수 있다. By applying the present invention, it is possible to overcome the narrowband characteristic which is a disadvantage of the linear array patch antenna. The present invention can be applied not only to a single patch antenna but also to a linear array patch antenna, thereby increasing frequency bandwidth.

Claims (1)

기존 형태의 접지판(4) 위의 유전체(1) 상단부에 급전선(3)을 통하여 패치(3)로 급전하여 동작하는 선형 배열 패치 안테나에 있어서 대역폭을 증가시키기 위하여 평판 형태의 접지판(4)을 변형하여 계단형 모양이 되게 하여 패치(2)와 계단형 접지판(6)과의 간격은 증가시키면서 급전선(3)과 계단형 접지판(6)사이의 간격은 유지할 수 있도록 함으로써 선형 배열 패치 안테나의 대역폭을 증가시키기 위한 계단형 접지판(6).In the linear array patch antenna which operates by feeding the patch 3 through the feed line 3 on the top of the dielectric 1 above the conventional ground plate 4, the ground plate 4 of the flat plate type is increased. To form a stepped shape to increase the spacing between the patch (2) and the stepped ground plate (6) while maintaining the gap between the feed line (3) and the stepped ground plate (6) linear array patch Stepped ground plane (6) to increase the bandwidth of the antenna.
KR2020050021513U 2005-07-25 2005-07-25 Stepped ground plane to increase frequency bandwidth in linear array patch antenna KR200407013Y1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101125148B1 (en) * 2010-05-07 2012-03-20 주식회사 유컴테크놀러지 Antenna for receiving gps signals
WO2018048061A1 (en) * 2016-09-09 2018-03-15 삼성전자 주식회사 Antenna array

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101125148B1 (en) * 2010-05-07 2012-03-20 주식회사 유컴테크놀러지 Antenna for receiving gps signals
WO2018048061A1 (en) * 2016-09-09 2018-03-15 삼성전자 주식회사 Antenna array
US11923610B2 (en) 2016-09-09 2024-03-05 Samsung Electronics Co., Ltd. Antenna array

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