Split-level layout narrow waveguide magic-T synthesizer
Through the narrow waveguide magic T synthesizer with split-layer layout and curved waveguide interfinger layout, the problem of excessive size in the width direction of the waveguide synthesizer is solved, and higher integration and wider application range are achieved.
Patent Information
- Application Number
- CN202411481307.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-01-07
AI Technical Summary
The existing single-layer planar layout of the waveguide magic T synthesizer results in the excessive size of the synthesizer in width direction, which increases the width of the transmitter cabinet, reduces the integration of the cabinet, and limits the application range of solid-state transmitters.
The narrow waveguide magic T synthesizer adopts a split-level layout, and the cross-finger layout of odd and even inputs is reduced in width direction, and the last-level waveguide magic T is 90. ° Vertical layout compensates for phase difference to achieve in-phase synthesis.
Effectively reduce the width direction to half of the single-layer plan layout, improve the integration of the cabinet, and broaden the application range of solid-state transmitters.
Smart Images
Figure CN119275526A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the field of microwave technology. Background Art
[0002] Solid-state transmitters have the advantages of large duty cycle, high reliability, long service life, and easy maintenance, and are widely used in modern radar and communication systems. High-power synthesizers are key components for realizing solid-state transmitters. Although the waveguide magic T synthesizer is large in size and weight, it has obvious advantages in insertion loss, power tolerance, and technical maturity. It can also achieve isolation between synthesis branches, and is an important method for realizing solid-state high-power synthesis.
[0003] The waveguide size of the C-band and lower frequency bands is relatively large. For example, the waveguide size of the national standard BJ70 is 34.85mm*15.80mm. The currently commonly used single-layer planar layout waveguide magic T synthesizer will cause the width direction of the synthesizer to exceed the sum of the widths of all power amplifier components involved in the synthesis, increase the additional transmitter cabinet width, reduce the cabinet integration, and affect the application scope of solid-state transmitters. Summary of the invention
[0004] In order to solve the problem of large width dimension in the prior art, the present invention proposes a narrow waveguide magic T synthesizer with a staggered layout.
[0005] The technical solution to realize the present invention is:
[0006] The narrow waveguide magic T synthesizer with staggered layout comprises a 2n-channel waveguide magic T synthesizer and n-1 waveguide synthesizer loads, n waveguide isolators and n waveguide isolator loads; the waveguide isolator is connected to the input of the waveguide magic T synthesizer; the odd-numbered inputs, even-numbered inputs of the waveguide magic T synthesizer and the waveguide synthesizer load, and the waveguide isolator load are respectively arranged in staggered layers; the last-stage waveguide magic T of the waveguide magic T synthesizer is arranged perpendicularly at 90° to the staggered layout plane, and the phase difference caused by the height difference of the two-layer layout of the odd-numbered input and the even-numbered input of the waveguide magic T synthesizer is compensated by the path difference of the two synthesis arms of the last stage, so as to realize in-phase synthesis.
[0007] Furthermore, the odd-numbered inputs of the waveguide magic-T synthesizer and the waveguide isolators connected thereto are synthesized in pairs and arranged on the same layer as the second layer (or third layer) in the staggered layout; the odd-numbered isolator loads and synthesizer loads are arranged in an interdigitated manner on the same plane through bending waveguides upward (or downward), as the first layer (or fourth layer) in the staggered layout.
[0008] Furthermore, the even-numbered inputs of the waveguide magic-T synthesizer and the waveguide isolators connected thereto are synthesized in pairs and arranged on the same layer as the third layer (or second layer) in the staggered layout; the isolator loads and synthesizer loads of the even-numbered paths are arranged in an interdigitated manner on the same plane through the bending waveguides downward (or upward), as the fourth layer (or first layer) in the staggered layout.
[0009] Compared with the prior art methods, the present invention has the following beneficial effects:
[0010] The narrow waveguide magic T synthesizer with a staggered layout has its width dimension reduced to half of the width of a single-layer planar layout. It is particularly suitable for applications where the width direction is limited but the height direction is sufficient, which improves the integration of the cabinet and broadens the application range of solid-state transmitters. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 A front view of an embodiment of the present invention;
[0012] Figure 2 A front side view of an embodiment of the present invention;
[0013] Figure 3 A rear side view of an embodiment of the present invention;
[0014] Among them: 11—Odd-numbered input of waveguide magic-T synthesizer; 12—Odd-numbered waveguide isolator; 13—Odd-numbered synthesizer isolator; 14—Odd-numbered isolator load; 21—Even-numbered input of waveguide magic-T synthesizer; 22—Even-numbered waveguide isolator; 23—Even-numbered synthesizer isolator; 24—Even-numbered isolator load; 31—Third-level waveguide magic-T. DETAILED DESCRIPTION
[0015] The present invention is further described below by way of embodiments in conjunction with the accompanying drawings. However, it should not be understood that the scope of the above subject matter of the present invention is limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.
[0016] Attached Figure 1 The preferred embodiment of the present invention is shown, comprising an eight-way (2 3 The first embodiment comprises a waveguide magic T synthesizer and 7 waveguide synthesizer loads, 8 waveguide isolators and 8 waveguide isolator loads. Each input port of the synthesizer is connected in series with an isolator. The synthesizer load is connected to the fourth port of the magic T synthesizer, and the isolator load is connected to the third port of the isolator.
[0017] The odd-numbered inputs of the synthesizer (such as the first, third, fifth, and seventh in this example) are synthesized in pairs (the first and third are synthesized to form the first path of the secondary synthesis, the fifth and seventh are synthesized to form the second path of the secondary synthesis, and then they are synthesized again to form the first path of the tertiary synthesis), and the odd-numbered inputs of the synthesizer and the odd-numbered waveguide isolators are arranged on the same layer as the second layer in the staggered layout; the four odd-numbered isolator loads and the three synthesizer loads are arranged in an interdigitated type on the same plane through bent waveguides as the first layer in the staggered layout.
[0018] The even-numbered inputs of the synthesizer (such as the second, fourth, sixth, and eighth in this example) are synthesized in pairs (the second and fourth are synthesized to form the first path of secondary synthesis, the sixth and eighth are synthesized to form the second path of secondary synthesis, and then they are synthesized again to form the second path of tertiary synthesis), and the even-numbered inputs of the synthesizer and the waveguide isolators of the even paths are arranged on the same layer as the third layer in the staggered layout; the four isolator loads of the even paths and the three synthesizer loads are arranged in an interdigitated type on the same plane through the bending waveguide as the fourth layer in the staggered layout.
[0019] The last stage of the synthesizer waveguide magic T (such as the third stage synthesizer in this example) is arranged at 90° perpendicular to the plane of the staggered distribution. The path difference of the two synthesis branches (the first and second paths of the three-way synthesis) is used to compensate for the phase difference caused by the height difference of the two-layer layout of the odd and even paths of the synthesizer to ensure in-phase synthesis. Considering the isolation index and the size of the synthesizer in the depth direction, the third stage synthesizer in this example uses an ET waveguide synthesizer instead of a magic T synthesizer.
[0020] The dimension of the present embodiment in the width direction is 244.85 mm, while the width of the waveguide magic T synthesizer with a single-layer planar layout and the same input port spacing is 454.85 mm, which is about 1.9 times that of the present embodiment. Therefore, the present embodiment is particularly suitable for applications where the width direction is limited but the height direction is sufficient, thus broadening the application scope of the solid-state transmitter.
Claims
1. A narrow waveguide magic T synthesizer with a staggered layout, characterized in that: Including a 2 n The invention discloses a waveguide magic T synthesizer and n-1 waveguide synthesizer loads, n waveguide isolators and n waveguide isolator loads; the waveguide isolator is connected to the input of the waveguide magic T synthesizer; the odd-numbered inputs, even-numbered inputs and the waveguide synthesizer load and the waveguide isolator load of the waveguide magic T synthesizer are arranged in staggered layers respectively; the last-stage waveguide magic T of the waveguide magic T synthesizer is arranged perpendicularly at 90° to the staggered layout plane, and the phase difference caused by the height difference of the two-layer layout of the odd-numbered inputs and the even-numbered inputs of the waveguide magic T synthesizer is compensated by the path difference of the two synthesis arms of the last stage, so as to realize in-phase synthesis.
2. The narrow waveguide magic T synthesizer with staggered layout according to claim 1 is characterized in that: The odd-numbered inputs of the waveguide magic-T synthesizer and the waveguide isolators connected thereto are synthesized in pairs and arranged on the same layer as the second or third layer in the staggered layout; the isolator loads and synthesizer loads of the odd-numbered paths are arranged in an interdigitated manner on the same plane through bending waveguides upward or downward as the first or fourth layer in the staggered layout.
3. The narrow waveguide magic T synthesizer with staggered layout according to claim 1 is characterized in that: The even-numbered inputs of the waveguide magic-T synthesizer and the waveguide isolators connected thereto are synthesized in pairs and arranged on the same layer as the third layer or the second layer in the staggered layer layout; the isolator loads and synthesizer loads of the even-numbered paths are arranged in an interdigitated manner on the same plane through the bending waveguides downward or upward, as the fourth layer or the first layer in the staggered layer layout.