High-frequency power synthesizing apparatus

• US 4,868,520 A
• Filed: 12/16/1987
• Issued: 09/19/1989
• Est. Priority Date: 12/20/1986
• Status: Expired due to Fees

• Current Assignee: Tokyo Keiso Company
• Original Assignee: Tokyo Keiso Company
• Inventors: Hattori, Sadayoshi, Terakawa, Takashige, Akaba, Noriyuki
• Primary Examiner(s): NOT, DEFINED
• Application Number:
  US07/133,660
• Time in Patent Office: 643 Days
• Field of Search: 330/29 S, 330/53, 330/54, 330/55, 330/56, 330/286, 333/117, 333/121
• US Class Current: 330/295
• CPC Class Codes: H03F 3/602 Combinations of several amplifiers

Abstract

A high-frequency power synthesizing apparatus having a plurality of distributors arranged in a plurality of stages, a plurality of amplifiers which are supplied with outputs from a final stage of said power distributors and which amplify these outputs to a predetermined level, and a power synthesizing unit including initial-stage power synthesizers supplied with outputs from said amplifiers and a final-stage synthesizer which outputs power to an external load. The final-stage power distributors and the initial stage synthesizers are constituted by 0°-hybrid modules. The output level of each amplifier is regulated and made constant by being compared with a predetermined level. The output levels of the amplifiers can be displayed on an external display.

Claims

1. A high-frequency power synthesizing apparatus comprising:

(a) power distributing means comprising;

(i) an initial-stage power distributor that receives an input signal to produce a desired output signal; and

(ii) a plurality of final stage 0°

-hybrid module distributors, said final-stage distributors receiving said output signal of said initial-stage power distributor;

(b) means for amplifying to a predetermined level a plurality of signals outputted from said plurality of final-stage 0°

-hybrid module distributors; and

(c) power synthesizer means, comprising;

(i) initial-stage 0°

-hybrid module synthesizers that receive amplified signals from said amplifying means; and

(ii) a final-stage synthesizer that receives signals outputted from said initial-stage 0°

hybrid module synthesizers to produce an output signal.

2. A high-frequency power synthesizing apparatus according to claim 1, wherein said amplifying means includes a plurality of regular power output sections whose output signal levels are controlled by an output signal level of a reference-power output section.

3. A high-frequency power synthesizing apparatus according to claim 2, wherein each regular-power output section comprises:

an amplifier;

means for detecting said output signal level of said amplifier; and

means for controlling said output signal level of said amplifier by comparing said output level from said detecting means with said output signal level of said reference-power output section.

4. A high-frequency power synthesizing apparatus according to claim 3, wherein said output signal level controlling means has a variable attenuator connected to the input of said amplifier, said output signal level controlling means controlling said variable attenuator so as to adjust said output signal level of said amplifier in said regular-power output section to substantially match said output signal level of said reference-power output section.

5. A high-frequency power synthesizing apparatus according to claim 1, further comprising:

means for detecting said amplified signals of each of said plurality of amplifying means; and

means for generating a reference level, said reference level generating means being interfaced to said amplifying means for adjusting said amplifying signal level of each of said amplifying means.

6. A high-frequency power synthesizing apparatus according to claim 5, wherein said reference level generating means is located outside said amplifying means.

7. A high-frequency power synthesizing apparatus according to claim 5, wherein said amplified signal level of each of said amplifying means is adjusted to be substantially equal to one another.

8. A high-frequency power synthesizing apparatus according to claim 5, wherein said reference level generating means is located outside said amplifying means and said amplified signal level of each amplifying means is adjusted to be substantially equal to one another.

9. A high-frequency power synthesizing apparatus according to claim 1, further comprising:

means for detecting an output level signal of each of said amplifying means; and

means for displaying said output level signal, said display means being connected to said detecting means.

10. A high-frequency power synthesizing apparatus according to claim 9, further comprising means for connecting each of said detecting means associated with each amplifying means to said display means.

11. A high-frequency power synthesizing apparatus according to claim 9, wherein said display means comprises a multi-channel display for simultaneously displaying said output level signal of a plurality of amplifying means.

12. A high-frequency power synthesizing apparatus according to claim 9, wherein said display means is detachably connected to said detecting means.

13. A high-frequency power synthesizing apparatus according to claim 11, wherein said display means is detachably connected to said detecting means.

14. A high-frequency power synthesizing apparatus comprising:

(a) power distributing means, comprising;

(i) an initial-stage 90°

-hybrid module power distributor that receives an input signal to produce a desired output signal;

(ii) a second-stage power distributor that receives a signal outputted from said initial-stage power distributor to produce desired output signals; and

(iii) a plurality of final-stage 0°

-hybrid module distributors that receive said output signals from said second-stage power distributor and output a plurality of signals;

(b) means for amplifying to a predetermined level said output signals from said final-stage distributors; and

(c) power synthesizer means, comprising;

(i) a plurality of initial-stage 0°

-hybrid module synthesizers that receive said output signals from said amplifying means to produce a desired output signal;

(ii) a second-stage synthesizer that receives said output signal from said initial-stage synthesizer and produces a desired output signal; and

(iii) a final-stage 90°

-hybrid module synthesizer that receives said output signal from said second-stage synthesizer and produces a desired output signal.

15. The high-frequency power synthesizing apparatus according to claim 14, wherein said second-stage power distributor comprises a 90°

hybrid module.

16. The high-frequency power synthesizing apparatus according to claim 14, wherein said second-stage synthesizer comprises a 90°

-hybrid module.

17. The high-frequency power synthesizer apparatus according to claim 14, wherein said second-stage power distributor comprises a 0°

-hybrid module.

18. The high-frequency power synthesizing apparatus according to claim 14, wherein said second-stage synthesizer comprises a 0°

hybrid module.

19. The apparatus of claim 14, wherein said second-stage power distributor and said second-stage synthesizer comprise 90°

-hybrid modules.

20. The apparatus of claim 14, wherein said second-stage distributor and said second-stage synthesizer comprise 0°

-hybrid modules.

21. A high-frequency power synthesizing apparatus according to claim 14, wherein said amplifying means includes a plurality of regular power output sections whose output signal levels are controlled by an output signal level of a reference-power output section.

22. A high-frequency power synthesizing apparatus according to claim 21, wherein each regular-power output section comprises:

an amplifier;

means for detecting said output signal level of said amplifier; and

means for controlling said output signal level of said amplifier by comparing said output level from said detecting means with said output signal level of said reference-power output section.

23. A high-frequency power synthesizing apparatus according to claim 22, wherein said output signal level controlling means has a variable attenuator connected to the input of said amplifier, said output signal level controlling means controlling said variable attenuator so as to adjust said output signal level of said amplifier in said regular-power output section to substantially match said output signal level of said reference-power output section.

24. A high-frequency power synthesizing apparatus according to claim 14, further comprising:

means for detecting said amplified signals of each of said plurality of amplifying means; and

means for generating a reference level, said reference level generating means being interfaced to said amplifying means for adjusting said amplified signal level of said ampliyfing means.

25. A high-frequency power synthesizing apparatus according to claim 24, wherein said reference level generating means is located outside said amplifying means.

26. A high-frequency power synthesizing apparatus according to claim 24, wherein said amplified signal level of each of said amplifying means is adjusted to be substantially equal to one another.

27. A high-frequency power synthesizing apparatus according to claim 24, wherein said reference level generating means is located outside said amplifying means and said amplified signal level of each amplifying means is adjusted to be substantially equal to one another.

28. A high-frequency power synthesizing apparatus according to claim 14, further comprising:

means for detecting an output level signal of each of said amplifying means; and

means for displaying said output level, said display means being connected to said detecting means.

29. A high-frequency power synthesizing apparatus according to claim 28, further comprising means for connecting each of said detecting means associated with each amplifying means to said display means.

30. A high-frequency power synthesizing apparatus according to claim 28, wherein said display means comprises a multi-channel display for simultaneously displaying said output level signal of a plurality of amplifying means.

31. A high-frequency power synthesizing apparatus according to claim 28, wherein said display means is detachably connected to said detecting means.

32. A high-frequency power synthesizing apparatus according to claim 30, wherein said display means is detachably connected to said detecting means.