Broadband merged switch
First Claim
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1. A broadband switch for a distributed parameter device, comprising:
- (a) a first active device having high and low impedance states in series with an input transmission line of said distributed parameter device, said distributed parameter device having said input transmission line and an output transmission line;
(b) at least one second active device having high and low impedance states shunt connected to said input transmission line; and
(c) impedance controls for said active devices to switch between said high and low impedance states;
wherein;
(d) said distributed parameter device is a distributed amplifier including N sections with each of said sections including an output transmission line segment, an input transmission line segment, and a gain device having an input connected to said input transmission line segment;
(e) said N input transmission line segments are connected to form said input transmission line;
(f) said N output transmission line segments are connected to form said output transmission line; and
(g) said at least one second active device shunt connected to said input transmission line is connected to one of said input transmission line segments.
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Abstract
Monolithic broadband semiconductor single-pole, double-throw switches are merged into distributed monolithic amplifiers and decrease the total semiconductor chip area occupied by the devices.
81 Citations
16 Claims
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1. A broadband switch for a distributed parameter device, comprising:
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(a) a first active device having high and low impedance states in series with an input transmission line of said distributed parameter device, said distributed parameter device having said input transmission line and an output transmission line; (b) at least one second active device having high and low impedance states shunt connected to said input transmission line; and (c) impedance controls for said active devices to switch between said high and low impedance states;
wherein;(d) said distributed parameter device is a distributed amplifier including N sections with each of said sections including an output transmission line segment, an input transmission line segment, and a gain device having an input connected to said input transmission line segment; (e) said N input transmission line segments are connected to form said input transmission line; (f) said N output transmission line segments are connected to form said output transmission line; and (g) said at least one second active device shunt connected to said input transmission line is connected to one of said input transmission line segments.
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2. A broadband switch for a distributed parameter device, comprising:
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(a) a first active device having high and low impedance states in series with an input transmission line of said distributed parameter device, said distributed parameter device having said input transmission line and an output transmission line; (b) at least one second active device having high and low impedance states shunt connected to said input transmission line; and (c) impedance controls for said active devices to switch between said high and low impedance states;
wherein;(d) said at least one second active device shunt connected to said input transmission line is two second active devices shunt connected to said input transmission line;
wherein;(e) said distributed parameter device is a distributed amplifier including N sections with each of said sections including an output transmission line segment, an input transmission line segment, and a gain device having an input connected to said input transmission line segment and an output connected to said output transmission line segment; (f) said N input transmission line segments are connected to form said input transmission line; (g) said N output transmission line segments are connected to form an output transmission line; and (h) each of said two second active devices shunt connected to said input transmission line is connected to one of said input transmission line segments, and the two segments with shunt active devices differ. - View Dependent Claims (3, 4, 5)
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6. A single-pole, double-throw switch for two distributed parameter devices, comprising:
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(a) a first active device having high and low impedance states in series with a first input transmission line of a first of said two distributed parameter devices, said first distributed parameter device having said first input transmission line and a first output transmission line; (b) a second active device having high and low impedance states in series with a second input transmission line of a second of said two distributed parameter devices, said second distributed parameter device having said second input transmission line and a second output transmission line; (c) a third active device having high and low impedance states shunt connected to said first input transmission line; (d) a fourth active device having high and low impedance states shunt connected to said second input transmission line; and (e) impedance controls for said active devices to switch between said high and low impedance states with said first and fourth active devices in the same impedance state and said second and third active devices both in an impedance state different from the impedance state of said first and fourth active devices. - View Dependent Claims (7, 8, 9, 10, 11)
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12. A transmit/receive module, comprising:
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(a) a first distributed transmit device with a first input transmission line and a first output transmission line; (b) a second distributed transmit device with a second input transmission line and a second output transmission line, the output of said first transmit device directed to said second input transmission line; (c) a first distributed receive device with a third input transmission line and a third output transmission line; (d) a second distributed receive device with a fourth input transmission line and a fourth output transmission line, the output of said first receive device directed to said fourth input transmission line; (e) a first active device having high and low impedance states in series with said first input transmission line; (f) a second active device having high and low impedance states shunt connected to said first input transmission line; (g) a third active device having high and low impedance states in series with said second input transmission line; (h) a fourth active device having high and low impedance states shunt connected to said second input transmission line; (i) a fifth active device having high and low impedance states in series with said third input transmission line; (j) a sixth active device having high and low impedance states shunt connected to said third input transmission line; (k) a seventh active device having high and low impedance states in series with said fourth input transmission line; (l) an eighth active device having high and low impedance states shunt connected to said fourth input transmission line; and (m) impedance controls for said active devices to switch between said high and low impedance states with said first, third, sixth, and eighth active devices in a first state and said second, fourth, fifth, and seventh active devices in a second state. - View Dependent Claims (13, 14, 15, 16)
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Specification