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Low temperature co-fired ceramic (LTCC) tube casing integrated with coupling electrical bridge

An electric bridge and tube-and-tube technology, applied in the field of LTCC tube and tube, can solve the problems of high cost and large circuit size, and achieve the effect of saving cost, reducing circuit volume and reducing the number of components.

Active Publication Date: 2013-02-20
南京国博电子股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

RF and microwave engineers need to purchase high-power bridges and active components separately to build balanced circuits, which leads to larger circuit size and higher cost

Method used

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  • Low temperature co-fired ceramic (LTCC) tube casing integrated with coupling electrical bridge
  • Low temperature co-fired ceramic (LTCC) tube casing integrated with coupling electrical bridge
  • Low temperature co-fired ceramic (LTCC) tube casing integrated with coupling electrical bridge

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Embodiment Construction

[0024] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0025] Such as figure 1 As shown, when the present invention is manufactured, the broadside coupling bridge 2 is manufactured by LTCC technology in the two side walls of the tube case respectively. Microwave circuits can be placed in the inner space of the tube shell as required. The shell and the microwave circuit are connected by a micro-assembly process. The shell not only realizes the sealing of the microwave circuit, but the microwave circuit in the present invention can be an active circuit, wherein the ports of the broadside coupling bridge 2 are respectively connected to the port 1 of the shell and the active circuit in the shell, and also The function of the balanced circuit is realized by means of an independent device. The circuit size is saved and the cost is reduced.

[0026] Such as figure 2 As shown, the present invention propo...

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Abstract

The invention discloses a low temperature co-fired ceramic (LTCC) tube casing integrated with coupling electrical bridge. The LTCC tube casing comprises a casing body for placing a microwave circuit, a tube cap for closing the casing body, a metal substrate installed at the bottom of the casing body and an active circuit welded above the metal substrate. Two broad-brimmed coupling electrical bridges manufactured by means of an LTCC process are integrated on two side walls of the casing body, ports of the broad-brimmed coupling electrical bridges are respectively connected with tube casing ports and the active circuit in the tube casing to form a balanced type circuit structure. The active circuit is electrically connected with coupling electrical bridge leading-out ends in the tube casing in a gold wire bonding mode. A user can install the tube casing with the encapsulated active circuit in a system in a surface-adhering mode. The LTCC tube casing integrated with the coupling electrical bridge aims at improving the circuit integrity, and can remarkably reduce the circuit volume and device cost and improve the circuit reliability.

Description

technical field [0001] The invention relates to an LTCC shell integrating a coupled electric bridge, belonging to the technical field of radio frequency and microwave. Background technique [0002] Balanced circuit is a common circuit in the field of radio frequency and microwave, and its applications include balanced low-noise amplifiers, balanced limiting amplifiers, and balanced power amplifiers. [0003] The advantages of balanced circuits are: [0004] 1. Improve standing waves: For low noise amplifiers and power amplifiers, the input and output standing waves are usually poor, and the standing waves of the circuit will be significantly improved after adopting a balanced structure; [0005] 2. Improve reliability: When a branch in the balanced circuit is damaged, the circuit will not fail immediately, but the gain will decrease and the performance will deteriorate. [0006] But a balanced circuit must use a 3db bridge. Among them, the low-power 3db bridge can be inte...

Claims

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Application Information

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IPC IPC(8): H01P5/18H03F1/00
Inventor 向虎许庆张海峰梁庆山施小翔
Owner 南京国博电子股份有限公司
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