Multipath mitigation circuit for home network
First Claim
1. A filter circuit, comprising:
- a pass band filter portion disposed along a signal path between a provider-side port and a user-side port, the pass band filter portion configured to pass a first frequency spectrum in a provider bandwidth and attenuate a second frequency spectrum in a home network bandwidth; and
a multipath interference mitigation leg branched in parallel from the pass band filter portion, the multipath interference mitigation leg configured to decrease multipath distortions by improving a return loss of the home network bandwidth, wherein a frequency response of the filter circuit comprises;
a first insertion loss in the provider bandwidth that is less than 3 dB;
a second insertion loss in the home network bandwidth that is more than 20 dB; and
a return loss at the user-side port is more than 10 dB.
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Accused Products
Abstract
A filter circuit is provided having multipath interference mitigation. The filter includes a signal path extending from an input to an output. The signal path includes a conductive path and a ground. A pass band filter is disposed along the signal path between the input and the output. The pass band filter passes a first frequency spectrum in a provider bandwidth, and attenuates a second frequency spectrum in a home network bandwidth. The filter circuit further includes a multipath interference mitigation leg operatively branched from the signal path. The multipath interference mitigation leg increases a return loss of the home network bandwidth. A frequency response of the filter circuit is characterized by an insertion loss characteristic between the input and the output being less than 3 dB in the provider bandwidth, and more than 20 dB in the home network bandwidth.
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Citations
21 Claims
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1. A filter circuit, comprising:
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a pass band filter portion disposed along a signal path between a provider-side port and a user-side port, the pass band filter portion configured to pass a first frequency spectrum in a provider bandwidth and attenuate a second frequency spectrum in a home network bandwidth; and a multipath interference mitigation leg branched in parallel from the pass band filter portion, the multipath interference mitigation leg configured to decrease multipath distortions by improving a return loss of the home network bandwidth, wherein a frequency response of the filter circuit comprises; a first insertion loss in the provider bandwidth that is less than 3 dB; a second insertion loss in the home network bandwidth that is more than 20 dB; and
a return loss at the user-side port is more than 10 dB. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A filter circuit, comprising:
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a pass band filter portion disposed along a signal path between a provider-side port and a user-side port, the pass band filter portion configured to pass a provider bandwidth signal received at the provider-side port and attenuate a home network bandwidth signal received at the user-side port, wherein the provider bandwidth comprises a cable television (CATV) bandwidth, and wherein the home network bandwidth comprises a multimedia over coax alliance (MoCA) bandwidth; and a multipath interference mitigation leg operatively branched in parallel from the signal path, the multipath interference mitigation leg configured to decrease interference related to transmissions of downstream and upstream signals along the signal path, wherein a frequency response of the filter circuit comprises a first insertion loss in the provider bandwidth is less than 3 dB, and a second insertion loss in the home network bandwidth is more than 20 dB. - View Dependent Claims (15, 16, 17, 18)
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19. A filter circuit, comprising:
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a pass band filter portion disposed along a signal path between a provider-side port and a user-side port, the pass band filter portion configured to pass a provider bandwidth and attenuate a home network bandwidth, wherein frequencies within the provider bandwidth are less than a predetermined frequency, and wherein frequencies within the home network bandwidth are greater than the predetermined frequency, and wherein the predetermined frequency is between about 1002 megahertz (MHz) and about 1125 MHz; and a multipath interference mitigation leg operatively branched from the signal path, the multipath interference mitigation leg configured to decrease reflections due to an impedance mismatch, wherein a frequency response of the filter circuit results in an attenuation between the provider-side port and the user-side port, the attenuation being less in the provider bandwidth than in the home network bandwidth, the frequency response comprises a first insertion loss in the provider bandwidth that is less than 3 dB and a second insertion loss in the home network bandwidth that is more than 20 dB, and the frequency response further results in a decrease in reflection of energy at the user-side port. - View Dependent Claims (20, 21)
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Specification