Cross coupled bandpass filter
First Claim
1. A cross coupled bandpass filter comprising:
- a filter housing having a series of spaced resonators positioned therein along at least one longitudinal axis of the filter, said resonators each including a conductive rod upstanding from a bottom wall of said housing, said housing having an upper wall including a longitudinal slot at one longitudinal edge of the upper wall; and
at least one coaxial cable portion having a first connecting section extending along the upper wall of said housing displaced from the at least one longitudinal axis, said connecting section being embedded into said slot, said cable portion having integral end sections including an inner conductor of said coaxial cable portion, extending at an angle from the at least one longitudinal axis variously in a spaced-gap proximity to the conductive rods of a selected first two of said series of resonators, said first two of the resonators having at least one other resonator of said series of resonators extending therebetween such that a finite pole is realized on at least a highside skirt of the filter response.
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Accused Products
Abstract
A filter housing has a series of linearly spaced resonators positioned in the housing. The resonators each include a conductive rod upstanding from a bottom wall of the housing. At least one coaxial cable portion has a first connecting section extending along a housing upper wall or housing cover, the cable portion having integral end sections including an inner conductor of the coaxial cable portion, extending variously into proximity to the conductive rods of a selected first two of the series of resonators, the first two of the resonators having at least one other resonator of the series of resonators extending therebetween. The periphery of the resonators may be configured variously with half or full circular or half or full elliptical peripheries. The filter may be diplexer or in higher degrees of multiplexing.
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Citations
19 Claims
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1. A cross coupled bandpass filter comprising:
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a filter housing having a series of spaced resonators positioned therein along at least one longitudinal axis of the filter, said resonators each including a conductive rod upstanding from a bottom wall of said housing, said housing having an upper wall including a longitudinal slot at one longitudinal edge of the upper wall; and at least one coaxial cable portion having a first connecting section extending along the upper wall of said housing displaced from the at least one longitudinal axis, said connecting section being embedded into said slot, said cable portion having integral end sections including an inner conductor of said coaxial cable portion, extending at an angle from the at least one longitudinal axis variously in a spaced-gap proximity to the conductive rods of a selected first two of said series of resonators, said first two of the resonators having at least one other resonator of said series of resonators extending therebetween such that a finite pole is realized on at least a highside skirt of the filter response. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A cross coupled bandpass filter comprising:
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a filter housing having a series of spaced resonators positioned therein along at least one longitudinal axis of the filter, said resonators each including a conductive rod upstanding from a bottom wall of said housing; at least one coaxial cable portion having a first connecting section extending along an upper wall of said housing displaced from the at least one longitudinal axis and having integral end sections including an inner conductor of said coaxial cable portion, extending at an angle from the at least one longitudinal axis variously in a spaced-gap proximity to the conductive rods of a selected first two of said series of resonators, said first two of the resonators having at least one other resonator of said series of resonators extending therebetween such that a finite pole is realized on at least a highside skirt of the filter response; and wherein selected ones of said resonators are variously configured with a half circular and half elliptical periphery to increase coupling between resonators. - View Dependent Claims (16, 17)
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18. A cross coupled bandpass filter comprising:
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a filter housing having a series of spaced columnar resonators positioned therein, said resonators each including a conductive rod upstanding from a bottom wall of said housing, wherein said conductive rods at equal center distances from each other; and wherein selected ones of said resonators are variously configured with a half circular periphery on one side and a half elliptical periphery on an opposite side for increasing coupling between resonators while maintaining the equal center distances between said conductive rods. - View Dependent Claims (19)
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Specification