Multi-band inverted-L antenna
First Claim
1. An antenna comprising:
- a first antenna element and a second antenna element, wherein the first antenna element and the second antenna element are configured to transmit and receive signals in a first band of frequencies and in a second band of frequencies, and wherein frequencies in the second band of frequencies are greater than frequencies in the first band of frequencies; and
a first pair of delay lines coupled to the first antenna element and a second pair of delay lines coupled to the second antenna element, wherein a first delay line in the first pair of delay lines and the second pair of delay lines is configured to phase shift electrical signals coupled to the first antenna element and the second antenna element such that a first impedance of the antenna is approximately equal in the first band of frequencies and the second band of frequencies, and wherein a second delay line in the first pair of delay lines and the second pair of delay lines is configured to convert the first impedance to a second impedance.
2 Assignments
0 Petitions
Accused Products
Abstract
An antenna includes a first antenna element and a second antenna element. The first antenna element and the second antenna element are configured to transmit and receive signals in a first band of frequencies and in a second band of frequencies. A first pair of delay lines is coupled to the first antenna element and a second pair of delay lines coupled to the second antenna element. A first delay line in the first pair of delay lines and the second pair of delay lines is configured to phase shift electrical signals coupled to the first antenna element and the second antenna element such that a first impedance of the antenna is approximately equal in the first band of frequencies and the second band of frequencies. A second delay line in the first pair of delay lines and the second pair of delay lines is configured to convert the first impedance to a second impedance.
65 Citations
21 Claims
-
1. An antenna comprising:
-
a first antenna element and a second antenna element, wherein the first antenna element and the second antenna element are configured to transmit and receive signals in a first band of frequencies and in a second band of frequencies, and wherein frequencies in the second band of frequencies are greater than frequencies in the first band of frequencies; and a first pair of delay lines coupled to the first antenna element and a second pair of delay lines coupled to the second antenna element, wherein a first delay line in the first pair of delay lines and the second pair of delay lines is configured to phase shift electrical signals coupled to the first antenna element and the second antenna element such that a first impedance of the antenna is approximately equal in the first band of frequencies and the second band of frequencies, and wherein a second delay line in the first pair of delay lines and the second pair of delay lines is configured to convert the first impedance to a second impedance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
-
20. An antenna comprising:
-
a first radiation means and a second radiation means for transmitting and receiving signals in a first band of frequencies and in a second band of frequencies, wherein frequencies in the second band of frequencies are greater than frequencies in the first band of frequencies; and a first delay means coupled to the first radiation means and a second delay means coupled to the second radiation means, wherein the first delay means and the second delay means are for phase shifting electrical signals coupled to the first radiation means and the second radiation means such that a first impedance of the antenna is approximately equal in the first band of frequencies and the second band of frequencies, and wherein the first delay means and the second delay means are for converting the first impedance to a second impedance.
-
-
21. A method, comprising:
-
phase shifting electrical signals coupled to a first antenna element and a second antenna element in an antenna, wherein the first antenna element and the second antenna element are configured to transmit and receive signals in a first band of frequencies and in a second band of frequencies, frequencies in the second band of frequencies are greater than frequencies in the first band of frequencies, and wherein a first impedance of the antenna is approximately equal in the first band of frequencies and the second band of frequencies in accordance with the phase shifting; and transforming the electrical signals such that the first impedance is converted into a second impedance.
-
Specification