Apparatus for enabling two elements to share a common feed
First Claim
1. An apparatus comprising:
- a first antenna element operable at at least one frequency within a first frequency range;
a second antenna element operable at at least one frequency within a second frequency range;
radio frequency circuitry electrically connected to the first antenna element via a first electrical path and electrically connected to the second antenna element via a second electrical path, wherein the first and second electrical paths are common where they connect to the radio frequency circuitry;
a first frequency-dependent filter arrangement, within the first electrical path, arranged to accept frequencies within the first frequency range and reject frequencies within the second frequency range;
a first impedance level transformation arrangement, having a first inductor, within the first electrical path, wherein the first inductor is shared with a first parallel resonant arrangement, within the first electrical path, for increasing the operational bandwidth of the first antenna element; and
a second frequency-dependent filter arrangement, within the second electrical path, arranged to accept frequencies within the second frequency range and reject frequencies within the first frequency range.
2 Assignments
0 Petitions
Accused Products
Abstract
An apparatus including a first antenna element operable at least one frequency within a first frequency range; a second antenna element operable at at least one frequency within a second frequency range; radio frequency circuitry electrically connected to the first antenna element via a first electrical path and electrically connected to the second antenna element via a second electrical path, wherein the first and second electrical paths are common where they connect to the radio frequency circuitry; a first frequency-dependent filter arrangement, within the first electrical path, arranged to accept frequencies within the first frequency range and reject frequencies within the second frequency range; a first impedance level transformation arrangement, having a first tapped inductor, within the first electrical path; and a second frequency-dependent filter arrangement, within the second electrical path, arranged to accept frequencies within the second frequency range and reject frequencies within the first frequency range.
13 Citations
20 Claims
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1. An apparatus comprising:
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a first antenna element operable at at least one frequency within a first frequency range; a second antenna element operable at at least one frequency within a second frequency range; radio frequency circuitry electrically connected to the first antenna element via a first electrical path and electrically connected to the second antenna element via a second electrical path, wherein the first and second electrical paths are common where they connect to the radio frequency circuitry; a first frequency-dependent filter arrangement, within the first electrical path, arranged to accept frequencies within the first frequency range and reject frequencies within the second frequency range; a first impedance level transformation arrangement, having a first inductor, within the first electrical path, wherein the first inductor is shared with a first parallel resonant arrangement, within the first electrical path, for increasing the operational bandwidth of the first antenna element; and a second frequency-dependent filter arrangement, within the second electrical path, arranged to accept frequencies within the second frequency range and reject frequencies within the first frequency range. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An apparatus comprising:
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a first element; a second element; circuitry electrically connected to the first element via a first electrical path and electrically connected to the second element via a second electrical path, wherein the first and second electrical paths are common where they connect to the circuitry; a first frequency-dependent filter arrangement, within the first electrical path, arranged to accept frequencies within a first frequency range and reject frequencies within a second frequency range; a first impedance level transformation arrangement, having a first inductor, within the first electrical path, wherein the first inductor is shared with a first parallel resonant arrangement within the first electrical path; and a second frequency-dependent filter arrangement, within the second electrical path, arranged to accept frequencies within the second frequency range and reject frequencies within the first frequency range. - View Dependent Claims (20)
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Specification