Pin diode switched impedance matching network having diode driver circuits transparent to RF potential
First Claim
Patent Images
1. An impedance network comprising:
- first means for providing an impedance including at least one selectable impedance portion which may be individually selected to vary said impedance; and
second means coupled to said first means for selecting said individual selectable impedance portion to vary said impedance and including at least one PIN diode, a first voltage source, a second voltage source having a voltage higher than said first voltage source and means for coupling said first voltage source and said second voltage source to said PIN diode to selectively forward bias and reverse bias said PIN diode, respectively, in such a manner that there is no direct radio frequency path to radio frequency ground potential through resistive or reactive impedances of said means for coupling and said voltage sources for controlling said impedance portion to vary the selectable impedance in such a manner that said means for coupling and said voltage sources are transparent to a radio frequency potential applied through said impedance.
1 Assignment
0 Petitions
Accused Products
Abstract
A coupler network with pin diode switches receives biasing and control information through a biasing network that is essentially transparent to the RF operation of the coupler network.
53 Citations
20 Claims
-
1. An impedance network comprising:
-
first means for providing an impedance including at least one selectable impedance portion which may be individually selected to vary said impedance; and second means coupled to said first means for selecting said individual selectable impedance portion to vary said impedance and including at least one PIN diode, a first voltage source, a second voltage source having a voltage higher than said first voltage source and means for coupling said first voltage source and said second voltage source to said PIN diode to selectively forward bias and reverse bias said PIN diode, respectively, in such a manner that there is no direct radio frequency path to radio frequency ground potential through resistive or reactive impedances of said means for coupling and said voltage sources for controlling said impedance portion to vary the selectable impedance in such a manner that said means for coupling and said voltage sources are transparent to a radio frequency potential applied through said impedance. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A radio frequency impedance switching network comprising:
-
first means for providing an impedance including at least one selectable impedance portion which may be individually selected to vary said impedance and arranged to form an input and output; second means for coupling a source of radio frequency potential to said input; and third means coupled to said first means for selecting said individual selectable impedance portion to vary said impedance and including at least one PIN diode, a first voltage source, a second voltage source having a voltage higher than said first voltage source, and means for coupling said first voltage source and said second voltage source to said PIN diode to selectively forward bias and reverse bias said PIN diode, respectively, in such a manner that there is no direct radio frequency path to radio frequency ground potential through resistive or reactive impedances of said means for coupling and said voltage sources for controlling said selectable impedance portion to vary the impedance in such a manner that said means for coupling and said voltage sources are transparent to said radio frequency potential. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
-
-
16. An impedance network comprising:
-
first means for providing an impedance including at least one selectable impedance portion which may be individually selected to vary said impedance, said at least one selectable impedance portion comprising N inductors, where N is an integer and each inductor is identified by a separate number from 1 to N, each inductor being formed by a number of interwound insulated conductors, wherein the number of insulated conductors is equal to the number identifying the inductor; and second means coupled to said first means for selecting said individual selectable impedance portion to vary said impedance and including at least one PIN diode, a first voltage source, a second voltage source having a voltage higher than said first voltage source, and means for coupling said first voltage source and said second voltage source to said PIN diode to selectively forward bias and reverse bias said PIN diode, respectively, for controlling said impedance portion to vary the selectable impedance. - View Dependent Claims (17)
-
-
18. A radio frequency impedance switching network comprising:
-
first means for providing an impedance including at least one selectable impedance portion which may be individually selected to vary said impedance and arranged to form an input and output, said at least one selectable impedance portion comprising N inductors, wherein N is an integer and each inductor is identified by a separate number from 1 to N, each inductor being formed by a number of interwound insulated conductors, wherein the number of insulated conductors is equal to the number identifying the inductor; second means for coupling a source of radio frequency potential to said input; and third means coupled to said first means for selecting said individual selectable impedance portion to vary said impedance and including at least one PIN diode, a first voltage source, a second voltage source having a voltage higher than said first voltage source, and means for coupling said first voltage source and said second voltage source to said PIN diode to selectively forward bias and reverse bias said PIN diode, respectively, for controlling said selectable impedance portion to vary the impedance. - View Dependent Claims (19, 20)
-
Specification