Miniature LTCC 1.8-GHz power divider with built-in resistor

Abstract

The invention discloses a miniature LTCC 1.8-GHz power divider with a built-in resistor. The miniature LTCC 1.8-GHz power divider with the built-in resistor comprises a surface-mounted 50-ohm impedance input port, an input inductor, a first spiral inductor, a second spiral inductor, a ground capacitor, a shunt capacitor, two vertical ports, two first parallel ports, two second parallel ports, the built-in tantalum absorption resistor, a first output inductor, a second output inductor, a first surface-mounted 50-ohm impedance output port, a second surface-mounted 50-ohm impedance output port and a ground plate. The miniature LTCC 1.8-GHz power divider is made of LTCC materials in a three-dimensional integrated mode and has the advantages that use is easy and convenient, the size is small, the isolation degree is high, the insertion loss is low, the phase difference between the two output ports is small, the reliability is high, the electrical performance and the temperature stability are good, the cost is low, and mass production can be achieved.

Description

technical field [0001] The invention relates to a power divider, in particular to a 1.8GHz power divider with LTCC miniature built-in resistance. Background technique [0002] With the rapid development of miniaturization of mobile communication, satellite communication and national defense electronic systems, high performance, low cost and miniaturization have become the development direction of the microwave / radio frequency field. The performance, size, reliability and cost of power dividers higher requirements have been put forward. In some state-of-the-art national defense equipment, the frequency bands used are quite crowded now, and cutting-edge equipment such as satellite communications are developing towards the millimeter-wave band, so microwave and millimeter-wave band power splitters have become key electronic components in the receiving and transmitting branches of this band, described The main indicators of the performance of this component are: passband operat...

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Problems solved by technology

[0003] In the prior art, the structure of the power divider mostly adopts the microstrip and coaxial structure, and the products produced are large in size, high in cost and heavy in weight, and a matching absorbing resistor needs to be externally connected to its isolation end during use. Not convenient enough to meet the design requirements of contemporary communication miniaturization

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