Directional antenna assembly
First Claim
Patent Images
1. A dual band directional antenna assembly comprising:
- a dielectric substrate having a first surface and a second surface, said first surface generally directed in a direction of maximum signal propagation;
a pair of conductive radiating elements disposed upon the first surface of the dielectric substrate;
a pair of LC trap structures, each having a first end and a second end, said first end of each LC trap structure being operatively coupled to an associated one of said radiating elements; and
a pair of conductive resonance members, each of said pair of conductive resonance members being operatively coupled to an associated one of the pair of LC trap structures at said second end.
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Abstract
A dual band antenna assembly is described to include a pair of dual band active radiating elements disposed upon a dielectric substrate. A pair of LC traps and conductor elements are electrically coupled to the radiating conductor elements to provide dual band resonance for cellular telephone and PCS device bandwidth ranges. Additional performance may be achieved with parasitic reflector and director elements. The multi-element directional antenna finds particular applicability for in-vehicle and wireless communication use.
36 Citations
20 Claims
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1. A dual band directional antenna assembly comprising:
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a dielectric substrate having a first surface and a second surface, said first surface generally directed in a direction of maximum signal propagation; a pair of conductive radiating elements disposed upon the first surface of the dielectric substrate; a pair of LC trap structures, each having a first end and a second end, said first end of each LC trap structure being operatively coupled to an associated one of said radiating elements; and a pair of conductive resonance members, each of said pair of conductive resonance members being operatively coupled to an associated one of the pair of LC trap structures at said second end. - View Dependent Claims (2, 3, 4, 5)
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6. A dual band directional antenna comprising:
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a dielectric substrate having a first surface and a second surface, said first surface generally directed in a direction of maximum signal propagation; a pair of conductive radiating elements disposed upon the first surface of the dielectric substrate; a first pair of LC trap structures, each of said first pair of LC trap structures having a first node and a second node, said first node of each LC trap structure being operatively coupled to an associated one of the pair of conductive radiating elements; a first pair of conductive resonance elements, each operatively coupled at the second node of one of the first pair of LC trap structures; and a dual band reflector assembly disposed away from the second surface of the dielectric substrate in a direction substantially opposite the direction of maximum propagation, said dual band reflector assembly includes a conductor element, a second pair of LC trap structures, and a second pair of conductive resonance elements. - View Dependent Claims (7, 8, 9, 10, 11)
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12. A dual band directional antenna comprising:
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a dielectric substrate having a first surface and a second surface, said first surface generally directed in a direction of maximum signal propagation; a pair of conductive radiating elements disposed upon the first surface of the dielectric substrate; a first pair of LC trap structures, each being operatively coupled to an associated one of said pair of conductive radiating elements; a first pair of conductive resonance members, each being operatively coupled to an associated one of said pair of conductive radiating elements through an associated one of said first pair of LC trap structures; and a dual band reflector assembly disposed away from the second surface of the dielectric substrate and in a direction substantially opposite the direction of maximum propagation, said dual band reflector assembly comprising a conductor section, a second pair of LC trap structures, and a second pair of conductive resonance members. - View Dependent Claims (13, 14, 15)
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16. A dual band directional antenna comprising:
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a housing member; a planar dielectric substrate disposed upon said housing member and having a first surface and a second surface, said first surface generally directed in a direction of maximum signal propagation; a pair of conductive radiating elements disposed upon the first surface of the dielectric substrate; a first pair of LC trap structures, each being operatively coupled to an associated one of said pair of conductive radiating elements through an aperture of the dielectric substrate; a first pair of conductive resonance members, each being operatively coupled to an associated one of said pair of conductive radiating elements through an associated one of said first pair of LC trap structures; and a dual band reflector assembly disposed away from the second surface of the dielectric substrate in a direction substantially opposite the direction of maximum signal propagation, said dual band reflector assembly comprising a conductor section, a second pair of LC trap structures, and a second pair of conductive resonance members. - View Dependent Claims (17, 18, 19, 20)
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Specification