Antenna apparatus for base station
First Claim
Patent Images
1. An antenna apparatus for a base station, comprising:
- a printed circuit board (PCB) having a power divider pattern including power divider terminals disposed on one side of said PCB;
a conducting ground plate having a plurality of apertures disposed in line as radiation elements respectively and electromagnetically coupled with each of said power divider terminals of the PCB, wherein said apertures are separated from each other by a distance "d" defined by d=λ
min /(1+sinε
max), where λ
min is a minimal wavelength and sinε
max is an edge angle of a cosecant zone, and said power divider terminals of the PCB are disposed to terminate within the contour of the apertures and all the power divider terminals are disposed in one line and have a length being a quarter of wavelength;
a foamed dielectric sheet, with a predetermined thickness, disposed between the PCB and the conducting ground plate; and
a cavity having a rectangular box with one side open and connected by its open side and by its edges to said ground plate so that all the apertures are disposed within a contour of said cavity.
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Accused Products
Abstract
A low cost base station antenna for preventing insertion loss. In the antenna, a printed circuit board (PCB) has a power divider pattern including power divider terminals disposed on one side of the PCB. A conducting ground plate has therein rectangular apertures disposed in line as radiation elements respectively and electromagnetically coupled with each of the power divider terminals of the PCB and disposed to be separated from the PCB by a foamed dielectric sheet with a predetermined thickness so as to be insulated with respect to the power divider pattern. The power divider terminals of the PCB are disposed to terminate within the contour of the apertures and all the power divider terminals are disposed in one line and have a length being a quarter of wavelength. A cavity has a rectangular box with one side open and connected by its open side and by its edges to the ground plate so that all the apertures are disposed within contour of the capacity.
43 Citations
17 Claims
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1. An antenna apparatus for a base station, comprising:
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a printed circuit board (PCB) having a power divider pattern including power divider terminals disposed on one side of said PCB; a conducting ground plate having a plurality of apertures disposed in line as radiation elements respectively and electromagnetically coupled with each of said power divider terminals of the PCB, wherein said apertures are separated from each other by a distance "d" defined by d=λ
min /(1+sinε
max), where λ
min is a minimal wavelength and sinε
max is an edge angle of a cosecant zone, and said power divider terminals of the PCB are disposed to terminate within the contour of the apertures and all the power divider terminals are disposed in one line and have a length being a quarter of wavelength;a foamed dielectric sheet, with a predetermined thickness, disposed between the PCB and the conducting ground plate; and a cavity having a rectangular box with one side open and connected by its open side and by its edges to said ground plate so that all the apertures are disposed within a contour of said cavity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An antenna apparatus for a base station, comprising:
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a printed circuit board having a power divider pattern including power divider terminals disposed on one side of said printed circuit board in one line, each of said power divider terminals having a length being a quarter of a wavelength λ
;a conducting ground plate having therein circular apertures disposed in one line as radiation elements respectively and electromagnetically coupled with each of said power divider terminals of the printed circuit board, wherein said apertures are separated from each other by a distance "d" defined by d=λ
min /(1+sinε
max), where λ
min is a minimal wavelength and sinε
max is an edge angle of a cosecant zone, and said power divider terminals of the printed circuit board are disposed to terminate above respective ones of said apertures and all;a foamed dielectric sheet, with a predetermined thickness, disposed between said one side of the printed circuit board and the conducting ground plate; and a cavity having a rectangular box with one side open and connected by its open side and by its edges to said ground plate so that all the apertures are disposed above said cavity. - View Dependent Claims (14, 15, 16, 17)
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Specification
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Current AssigneeSamsung Electronics Co. Ltd.
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Original AssigneeSamsung Electronics Co. Ltd.
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InventorsTimofeev, Igor E., Han, Kyung-Sup, Kim, Je-Woo
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Primary Examiner(s)Wimer, Michael C.
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Application NumberUS09/208,848Time in Patent Office698 DaysField of Search343/770, 343/778, 343/795, 343/700 MS, 343/789US Class Current343/770CPC Class CodesH01Q 1/246 specially adapted for base ...H01Q 1/38 formed by a conductive laye...H01Q 13/18 the slot being backed by, o...H01Q 21/10 Collinear arrangements of s...H01Q 9/285 Planar dipole H01Q9/065 tak...
