Planar antenna
First Claim
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1. A planar antenna for receiving polarized waves of a wavelength λ
- g transmitted as carried on SHF band from a satellite, the antenna comprising a power-supply circuit pattern including power-supply terminals and additional power-supply terminals respectively formed by a conductive material, said additional power-supply terminals are provided as optional power-supply terminals connected as extensions of said power-supply terminals and have a mutual phase difference of an integer multiple of wavelength λ
g, a radiation circuit pattern including radiation elements and additional radiation elements respectively formed by a conductive material, said radiation elements corresponding respectively to each of said power-supply terminals and said additional radiation elements corresponding respectively to each of said additional power-supply terminals, and a ground conductor layer disposed with respect to said power-supply circuit pattern and radiation circuit pattern with a dielectric layer interposed between the power-supply circuit pattern and the ground conductor layer wherein a further dielectric layer is interposed between said power-supply circuit pattern and said radiation circuit pattern, whereby said power-supply and radiation circuit patterns and said ground conductor layer form a mutually spaced parallel relationship.
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Abstract
A planar antenna is provided, at optional power-supply terminals in power-supply circuit pattern provided in parallel with radiation circuit pattern and ground conductor layer, with additional power-supply terminals having a phase difference of an integer multiple of wavelength λg, while the radiation circuit pattern is provided with additional radiation elements respectively corresponding to each of the additional power-supply terminals, whereby the planar antenna can be made to attain a high gain with the minimum dimension in accordance with the field strength of satellite broadcasting electric waves.
49 Citations
2 Claims
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1. A planar antenna for receiving polarized waves of a wavelength λ
- g transmitted as carried on SHF band from a satellite, the antenna comprising a power-supply circuit pattern including power-supply terminals and additional power-supply terminals respectively formed by a conductive material, said additional power-supply terminals are provided as optional power-supply terminals connected as extensions of said power-supply terminals and have a mutual phase difference of an integer multiple of wavelength λ
g, a radiation circuit pattern including radiation elements and additional radiation elements respectively formed by a conductive material, said radiation elements corresponding respectively to each of said power-supply terminals and said additional radiation elements corresponding respectively to each of said additional power-supply terminals, and a ground conductor layer disposed with respect to said power-supply circuit pattern and radiation circuit pattern with a dielectric layer interposed between the power-supply circuit pattern and the ground conductor layer wherein a further dielectric layer is interposed between said power-supply circuit pattern and said radiation circuit pattern, whereby said power-supply and radiation circuit patterns and said ground conductor layer form a mutually spaced parallel relationship. - View Dependent Claims (2)
- g transmitted as carried on SHF band from a satellite, the antenna comprising a power-supply circuit pattern including power-supply terminals and additional power-supply terminals respectively formed by a conductive material, said additional power-supply terminals are provided as optional power-supply terminals connected as extensions of said power-supply terminals and have a mutual phase difference of an integer multiple of wavelength λ
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Current AssigneeMatsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
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Original AssigneeAsahi Matsushita Electric Works Ltd. (Panasonic Holdings Corporation)
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InventorsTsukamoto, Katsuya, Abiko, Toshio
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Primary Examiner(s)Wimer, Michael C.
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Application NumberUS07/282,069Time in Patent Office732 DaysField of Search343/700 MS, 343/795, 343/778, 343/770, 343/771, 343/824, 343/814, 343/846, 333/116, 333/128, 333/136US Class Current343/700.0MSCPC Class CodesH01Q 21/0081 using suspended striplinesH01Q 21/061 Two dimensional planar arraysH04B 7/18571 for satellites; for fixed o...
