Patent US4263559A successfully refreshed from Google Patents.
US4263559A
Expired / Lapsed
US
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N-way series connected quadrature power divider and combiner
Assignee: Lanteris Space LLC
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Filing: 1979-01-26
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Granted: 1981-04-21
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Expires: 1999-01-26
Abstract
Abstract This circuit divides power from an input source equally among N different paths, where N is an arbitrary number. These individual path powers can then be amplified separately to take advantage of the full output power ratings for the individual amplifiers, then the outputs from the amplifiers are combined. A combiner circuit, which is the reverse of the divider circuit, then combines the individual powers to a single output. In each of the combiner and divider circuits, the phase angles of the output ports vary from each other by 90 degrees sequentially down the entire chain of N-1 couplers. Each combiner and divider network utilizes N-1 series-connected couplers, preferably interdigitated ones. The interdigitated couplers utilize preselected power division ratios based upon N.
Inventors
- 👤 Pang T. Ho
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:13
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/60; H03F3/602
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
48 words
A power coupler microstrip circuit operable at microwave frequencies for providing an equal power distribution among an arbitrary number N paths comprising: N-1 series-connected quadrature directional couplers wherein the power division ratio of each Jth coupler is 1/(N-J+1); where J is an integer having a value of 1≦J≦N-1.
Claim 2
Dependent Claim
48 words
A power coupler microstrip circuit operable at microwave frequencies for providing an equal power distribution among an arbitrary number N paths comprising: N-1 series-connected quadrature directional couplers wherein the power division ratio of each Jth coupler is 1/(N-J+1); where J is an integer having a value of 1≦J≦N-1.
Claim 3
Dependent Claim
13 words
The circuit of claim 1 wherein the couplers are of the interdigitated type.
Claim 4
Dependent Claim
21 words
The circuit of claim 2 wherein the voltage phase angles at the output ports of adjacent couplers differ by 90 degrees.
Claim 5
Dependent Claim
23 words
The circuit of claim 1 wherein the through port of each Jth coupler is connected to the input port of the (J+1)st coupler.
Claim 6
Dependent Claim
137 words
A microstrip circuit for power combining an arbitrary number N amplifiers each having a power amplification factor of A comprising: a power dividing microstrip network having N-1 series-connected dividing quadrature directional couplers, the couple port of each dividing coupler being connected to the input of the first N-1 amplifiers, respectively, and the through port of the (N-1)st dividing coupler being connected to the input of the Nth amplifier; and a power combining microstrip network having N-1 series-connected combining quadrature directional couplers, the couple port of each combining coupler being connected to the output of the last N-1 amplifiers, respectively, and the through port of the first coupler being connected to the output of the first amplifier; wherein there are no intervening resistive components connected between said amplifiers and said power dividing network or said power combining network.
Claim 7
Dependent Claim
137 words
A microstrip circuit for power combining an arbitrary number N amplifiers each having a power amplification factor of A comprising: a power dividing microstrip network having N-1 series-connected dividing quadrature directional couplers, the couple port of each dividing coupler being connected to the input of the first N-1 amplifiers, respectively, and the through port of the (N-1)st dividing coupler being connected to the input of the Nth amplifier; and a power combining microstrip network having N-1 series-connected combining quadrature directional couplers, the couple port of each combining coupler being connected to the output of the last N-1 amplifiers, respectively, and the through port of the first coupler being connected to the output of the first amplifier; wherein there are no intervening resistive components connected between said amplifiers and said power dividing network or said power combining network.
Claim 8
Dependent Claim
58 words
The circuit of claim 5 wherein the through port of each Jth dividing coupler is connected to the input port of the (J+1)st dividing coupler; and the input port of each Kth combining coupler is connected to the through port of the (K+1)st combining coupler, if any; where J and K are integers having values 1≦J≦N-1 and 1≦(K)≦N-1.
Claim 9
Dependent Claim
29 words
The circuit of claim 5 wherein the power division ratio of each Jth dividing coupler is 1/(N-J+1); and the power combination ratio of each Kth combining coupler is 1/(K+1).
Claim 10
Dependent Claim
48 words
A power combining microstrip circuit operable at microwave frequencies for providing an equal power combination of an arbitrary number N input paths comprising N-1 series-connected quadrature directional couplers wherein the power combination ratio of each Kth coupler is 1/(K+1); where K is an integer having a value 1≦K≦N-1.
Claim 11
Dependent Claim
48 words
A power combining microstrip circuit operable at microwave frequencies for providing an equal power combination of an arbitrary number N input paths comprising N-1 series-connected quadrature directional couplers wherein the power combination ratio of each Kth coupler is 1/(K+1); where K is an integer having a value 1≦K≦N-1.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-04-20 | 1984-10-20 | 1985-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-20 | 1988-10-20 | 1989-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-20 | 1992-10-20 | 1993-04-21 | $7700.00 | Window Closed / Lapsed |