Universal fixture/package for spatial-power-combined amplifier

• US 6,028,483 A
• Filed: 05/06/1998
• Issued: 02/22/2000
• Est. Priority Date: 05/06/1998
• Status: Expired due to Term

• Current Assignee: Hughes Electronics Corporation (AT&T, Inc.), Regents of the University of California (University of California)
• Original Assignee: Hughes Electronics Corporation (AT&T, Inc.), University of California Santa Barbara (University of California)
• Inventors: Shealy, Jeffrey B., Alexanian, Angelos, York, Robert, Rensch, David B.
• Primary Examiner(s): Pascal, Robert
• Assistant Examiner(s): NGUYEN, KHANH V
• Application Number:
  US09/073,705
• Time in Patent Office: 657 Days
• Field of Search: 330/286, 330/295, 330/65, 330/66, 330/67, 330/68, 333/248, 333/250, 333/256, 333/257, 257/731, 11/732
• US Class Current: 330/286
• CPC Class Codes: H03F 3/195 in integrated circuits
• CPC Class Codes: H03F 3/24 of transmitter output stages
• CPC Class Codes: H03F 3/602 Combinations of several amplifiers

Abstract

A combined test fixture and spatial-power-combined amplifier includes a base, a first waveguide mounting flange engaged to said base, a second waveguide mounting flange engaged to said base, a waveguide input fixed to said first flange, a waveguide output fixed to said second flange, an amplifier array disposed between said first flange and second flange, said array comprising a plurality of semiconductors for amplifying a signal, and a spacer for spacing apart said semiconductors. A plurality of amplifier cards constitute the array, with the cards being disposed in various arrangements which include a linearly stacked arrangement and radially stacked arrangement. The first and second waveguide mounting flanges are constructed to slide along the base to enable the amplifier array to be easily changed.

Claims

1. A spatial-power-combined amplifier, comprising:

a plurality of cards having amplification means for amplifying a signal;

a plurality of spacers disposed among said cards such that said cards are spaced apart and generally disposed parallel to a direction of propagation of said signal; and

a flange which is disposed about said cards, said flange being adjustable along said direction of propagation and relative to a base that supports said flange.

2. The apparatus of claim 1 further comprising a plurality of amplification means on each of said cards.

3. The apparatus of claim 1 further comprising a heat sink thermally engaged to said cards.

4. The apparatus of claim 1 wherein said flange directs said signal to said cards.

5. The apparatus of claim 1 wherein said spacers are configured to provide a bias access to said cards.

6. A combined spatial-power amplifier and test fixture for testing amplification devices, comprising:

a base;

a first mounting flange slidably engaged to said base; and

a plurality of cards having amplification means for amplifying a signal, said cards being spaced apart from each other and releasably engaged to said first mounting flange.

7. The apparatus of claim 6, further comprising a second mounting flange such that the first and second mounting flanges are releasably engaged to opposing end portions of said cards.

8. The apparatus of claim 6, wherein said first mounting flange is contoured with a plurality of grooves for engaging said cards.

9. The apparatus of claim 6, further comprising a plurality of spacers disposed among said cards.

10. The apparatus of claim 9, wherein said spacers further comprise bias access means for allowing a biasing of said amplification means.

11. The apparatus of claim 6, further comprising a heat sink disposed adjacent to said cards.

12. A spatial-power-combined amplifier, comprising:

a base;

a first waveguide mounting flange engaged to said base;

a second waveguide mounting flange engaged to said base;

a waveguide input fixed to said first flange;

a waveguide output fixed to said second flange;

an amplifier array disposed between said first flange and second flange, said array comprising a plurality of semiconductors for amplifying a signal; and

a spacer for spacing apart said semiconductors, said spacer being configured to provide a hole for allowing access for a bias connection to said semiconductors.

13. The apparatus of claim 12, wherein said base comprises at least two separable first and second components, said first component supporting said amplifier array.

14. The apparatus of claim 12, wherein said amplifier array comprises a plurality of cards which hold said semiconductors.

15. The apparatus of claim 14, further comprising a plurality of spacers.

16. The apparatus of claim 15, wherein said array comprises alternating spacers and cards.

17. The apparatus of claim 14, wherein said first and second mounting flanges are configured to provide respective apertures to engage end portions of each of said cards.

18. The apparatus of claim 14, wherein a heat sink is thermally affixed to each card.

19. The apparatus of claim 14, wherein said cards are spaced apart to provide spatial areas of the same size.

20. The apparatus of claim 14, wherein said cards are spaced apart to provide spatial areas of different sizes.

21. A test fixture for spatial-power-combined amplifier, comprising:

a base;

a first waveguide mounting flange slidably engaged to said base;

a second waveguide mounting flange slidably engaged to said base;

a waveguide input detachably fixed to said first flange;

a waveguide output detachably fixed to said second flange; and

an amplifier array disposed between said first flange and second flanges, said array comprising a plurality of amplifier cards that are releasably engaged to said first and second waveguide mounting flanges.

22. The apparatus of claim 21, wherein said cards are in a linearly stacked arrangement.

23. The apparatus of claim 21, wherein said cards are in a radially stacked arrangement.

24. The apparatus of claim 21, further comprising a spacer disposed among said cards.

25. The apparatus of claim 24 wherein said spacer provides a spatial area among said cards.

26. The apparatus of claim 24 wherein said spacer drains heat away from said cards.

27. The apparatus of claim 21 wherein said cards are constructed to enable an input signal to transition among multiple modes of transmission.

28. The apparatus of claim 21 wherein said array is described by M×

N, with M being equal to the number of amplification devices on any one card and N being equal to the number of cards.