Slow wave structure having offset projections comprised of a metal-dielectric composite stack
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01J-023/38
H01J-025/34
출원번호
US-0428371
(2009-04-22)
등록번호
US-8179045
(2012-05-15)
발명자
/ 주소
Goren, Yehuda G.
Lally, Philip M.
출원인 / 주소
Teledyne Wireless, LLC
대리인 / 주소
K&L Gates LLP
인용정보
피인용 횟수 :
2인용 특허 :
267
초록▼
A traveling wave amplifier circuit to receive an RF wave and an electron sheet beam and to effect synchronized interaction therebetween. The circuit includes a wave guide having at least a first wall and a second wall opposite the first wall. The first wall and the second wall are connected to defin
A traveling wave amplifier circuit to receive an RF wave and an electron sheet beam and to effect synchronized interaction therebetween. The circuit includes a wave guide having at least a first wall and a second wall opposite the first wall. The first wall and the second wall are connected to define an axis of propagation and a rectangular wave guide cross-section that is normal to the axis of propagation. The circuit further includes a plurality of first projections located on an interior surface of the first wall of the wave guide, the first projections being pitched in a direction of the axis of propagation. The circuit further includes a plurality of second projections located on an interior surface of the second wall of the wave guide, the second projections being pitched in a direction of the axis of propagation. A number of the second projections are located on the interior surface of the second wall in a staggered configuration in a direction of the axis of propagation relative to a number of corresponding first projections located on the interior surface of the first wall.
대표청구항▼
1. A traveling wave amplifier circuit to receive an RF wave and an electron sheet beam and to effect synchronized interaction therebetween, the circuit comprising: a wave guide comprising at least a first wall and a second wall opposite the first wall, wherein the first wall and the second wall are
1. A traveling wave amplifier circuit to receive an RF wave and an electron sheet beam and to effect synchronized interaction therebetween, the circuit comprising: a wave guide comprising at least a first wall and a second wall opposite the first wall, wherein the first wall and the second wall are connected to define an axis of propagation and a rectangular wave guide cross-section that is normal to the axis of propagation;a plurality of first projections located on and extending from an interior surface of the first wall of the wave guide, wherein the first projections are pitched in a direction of the axis of propagation;a plurality of second projections located on and extending from an interior surface of the second wall of the wave guide, wherein the second projections are pitched in the direction of the axis of propagation;wherein a number of the second projections are located on and extending from the interior surface of the second wall in a staggered configuration in the direction of the axis of propagation relative to a number of corresponding first projections located on and extending from the interior surface of the first wall; andwherein one or more of the first and second projections comprise a composite stack of a dielectric material and a metal material. 2. The traveling wave amplifier circuit of claim 1, wherein each of the first projections comprises a first vane normal to the interior surface of the first wall, the first vane defining: a substantially constant thickness T1 measured in the direction of the axis of propagation, a substantially constant height H1 measured in the direction normal to the interior surface of the first wall, and a substantially constant width W1 measure in a direction transverse to the axis of propagation; andwherein each of the second projections comprises a second vane normal to the interior surface of the second wall, the second vane defining: a substantially constant thickness T2 measured in the direction of the axis of propagation, a substantially constant height H2 measured in a direction normal to the interior surface of the second wall, and a substantially constant width W2 measured in a direction transverse to the axis of propagation. 3. The traveling wave amplifier circuit of claim 2, wherein W1 is substantially equal to a width of the interior surface of the first wall measured in the direction transverse to the axis of propagation. 4. The traveling wave amplifier circuit of claim 2, wherein W2 is substantially equal to a width of the interior surface of the second wall measured in the direction transverse to the axis of propagation. 5. The traveling wave amplifier circuit of claim 2, wherein T1 is substantially equal to T2, wherein H1 is substantially equal to H2, and wherein W1 is substantially equal to W2. 6. The traveling wave amplifier circuit of claim 1, wherein the pitch of the second projections is substantially equal to the pitch of the first projections. 7. The traveling wave amplifier circuit of claim 6, wherein the pitch of the first projections and the pitch of the second projections is a constant value. 8. The traveling wave amplifier circuit of claim 6, wherein a change in the pitch of the first projections is equal to a change in the pitch of the second projections. 9. The traveling wave amplifier circuit of claim 1, wherein each second projection of the staggered configuration symmetrically opposes a pair of adjacent first projections located on the interior surface of the first wall. 10. The traveling wave amplifier of claim 1, wherein each second projection of the staggered configuration asymmetrically opposes each of a pair of adjacent first projections located on the interior surface of the first wall. 11. The traveling wave amplifier circuit of claim 1, wherein the dielectric material is selected from the group consisting of: diamond, beryllium oxide. 12. The traveling wave amplifier circuit of claim 1, wherein the metal material is selected from the group consisting of: copper, molybdenum, tungsten. 13. A traveling wave amplifier circuit to receive an RF wave and an electron sheet beam to effect synchronized interaction therebetween, the circuit comprising: a wave guide comprising at least a first wall and a second wall opposite the first wall, wherein the first wall and the second wall are connected to define an axis of propagation and a rectangular wave guide cross-section that is normal to the axis of propagation;a plurality of first projections located on and extending from an interior surface of the first wall of the wave guide, wherein the first projections are pitched in a direction of the axis of propagation;a plurality of second projections located on an interior surface of the second wall of the wave guide, wherein the second projections are pitched in the direction of the axis of propagation;wherein a number of the second projections are located on and extending from the interior surface of the second wall in a staggered configuration in the direction of the axis of propagation relative to a number of corresponding first projections located on the interior surface of the first wall; andwherein each second projection of the staggered configuration asymmetrically opposes each of a pair of adjacent first projections located on the interior surface of the first wall. 14. The traveling wave amplifier circuit of claim 13, wherein each of the first projections comprises a first vane normal to the interior surface of the first wall, the first vane defining: a substantially constant thickness T1 measured in the direction of the axis of propagation, a substantially constant height H1 measured in the direction normal to the interior surface of the first wall, and a substantially constant width W1 measure in a direction transverse to the axis of propagation; andwherein each of the second projections comprises a second vane normal to the interior surface of the second wall, the second vane defining: a substantially constant thickness T2 measured in the direction of the axis of propagation, a substantially constant height H2 measured in a direction normal to the interior surface of the second wall, and a substantially constant width W2 measured in a direction transverse to the axis of propagation. 15. The traveling wave amplifier circuit of claim 14, wherein T1 is substantially equal to T2, wherein H1 is substantially equal to H2, and wherein W1 is substantially equal to W2. 16. The traveling wave amplifier circuit of claim 14, wherein W2 is substantially equal to a width of the interior surface of the second wall measured in the direction transverse to the axis of propagation. 17. The traveling wave amplifier circuit of claim 14, wherein W1 is substantially equal to a width of the interior surface of the first wall measured in the direction transverse to the axis of propagation. 18. The traveling wave amplifier circuit of claim 13, wherein each one or more of the first and second projections comprise of a composite stack of a metal material and a dielectric material. 19. The traveling wave amplifier circuit of claim 18, wherein the dielectric material is selected from the group consisting of: diamond, beryllium oxide. 20. The traveling wave amplifier circuit of claim 18, wherein the metal material is selected from the group consisting of: copper, molybdenum, tungsten. 21. The traveling wave amplifier circuit of claim 13, wherein the pitch of the second projections is substantially equal to the pitch of the first projections. 22. The traveling wave amplifier circuit of claim 21, wherein the pitch of the first projections and the pitch of the second projections is a constant value. 23. The traveling wave amplifier circuit of claim 21, wherein a change in the pitch of the first projections is equal to a change in the pitch of the second projections.
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