TEM slot array antenna
First Claim
1. A TEM slot array antenna comprising:
- a multilayer substrate formed by laminating at least two dielectric substrates and having at least an upper layer, an intermediate layer and a lower layer;
an upper conductive plate provided with a plurality of slots and laid in the upper layer;
at least one strip line formed in the intermediate layer so as to correspond to the plurality of slots;
a lower conductive plate formed in the lower layer; and
a dividing strip conductor without branches formed in a portion of the intermediate layer not corresponding to the slots, wherein at least two slots correspond to the strip line, one end portion of each of the at least one strip line is connected to the dividing strip conductor, the dividing strip conductor has a feed point to which a center conductor included in a high-frequency signal transmission line is directly connected, and the lower conductive plate has a grounding point to which a grounding conductor included in the high-frequency signal transmission line is connected.
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Accused Products
Abstract
A novel planar antenna is capable of feeding power to a plurality of radiation elements at a low loss and has a construction suitable for mass production. The antenna comprises a multilayer substrate formed by laminating at least two dielectric substrates and having at least an upper layer, an intermediate layer and a lower layer, upper conductive plate provided with a plurality of slots and laid in the upper layer, at least one strip line formed in the intermediate layer so as to correspond to the plurality of slots, and a lower conductive plate formed in the lower layer. At least two slots correspond to the strip line, the strip line has a feed point to which a center conductor included in a high-frequency signal transmission line is connected, and a grounding point to which a grounding conductor included in the high-frequency signal transmission line is connected is formed on a second conductive surface.
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Citations
27 Claims
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1. A TEM slot array antenna comprising:
- a multilayer substrate formed by laminating at least two dielectric substrates and having at least an upper layer, an intermediate layer and a lower layer;
an upper conductive plate provided with a plurality of slots and laid in the upper layer;
at least one strip line formed in the intermediate layer so as to correspond to the plurality of slots;
a lower conductive plate formed in the lower layer; and
a dividing strip conductor without branches formed in a portion of the intermediate layer not corresponding to the slots, wherein at least two slots correspond to the strip line, one end portion of each of the at least one strip line is connected to the dividing strip conductor, the dividing strip conductor has a feed point to which a center conductor included in a high-frequency signal transmission line is directly connected, and the lower conductive plate has a grounding point to which a grounding conductor included in the high-frequency signal transmission line is connected. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
- a multilayer substrate formed by laminating at least two dielectric substrates and having at least an upper layer, an intermediate layer and a lower layer;
Specification
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- Resources
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Current AssigneeHitachi, Ltd.
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Original AssigneeHitachi, Ltd.
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InventorsTakei, Ken, Kondoh, Hiroshi
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Primary Examiner(s)Wong, Don
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Assistant Examiner(s)PHAN, THO GIA
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Application NumberUS08/822,005Time in Patent Office953 DaysField of Search343/767, 343/700 MS, 343/770, 343/771US Class Current343/770CPC Class CodesH01Q 21/0075 Stripline fed arrays H01Q21...H01Q 21/068 using parallel coplanar tra...
