Coaxial cable microstrip line hybrid impedance converter
An impedance converter, coaxial cable technology, applied in circuits, electrical components, waveguide-type devices, etc., can solve the problems of large equipment, not suitable for single-ended applications, difficult to meet the needs of equipment miniaturization, etc., to achieve high power The effect of capacity
Active Publication Date: 2022-02-08
TIANJIN 712 COMM & BROADCASTING CO LTD +1
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Problems solved by technology
[0003] In the current mobile communication standard, the frequency band of military and civilian communication continues to expand. In related technologies, as the bandwidth requirements continue to increase, the order of traditional multi-section transmission line impedance converters also continues to increase, resulting in large equipment volume, which is often difficult to meet Miniaturization requirements of equipment; and some broadband matching designs based on ferrite transformers or BULUN are not suitable for single-ended applications or high-power applications exceeding the UHF frequency band
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[0034] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0035] The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0036] Such as figure 1 A coaxial cable microstrip line hybrid impedance converter shown includes:
[0037] A high-impedance signal port 101, a low-impedance signal port 102, at least one radio frequency coaxial cable 103, and a microstrip line 104, the coaxial cable includes an inner conductor and an outer conductor, and the two ends of the inner conductor of the coaxial cable respectively pass through the third welding point 109 and the fourth pad 110 are connected to the conductor strip of the microstrip line 104 .
[0038] The port impedance of the high-impedance signal port is defined as ZHigh=n*Z0, where n≥2.
[0039] The port impedance of the low-impedance signal port is define...
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The invention provides a coaxial cable and microstrip line hybrid impedance converter. The coaxial cable and microstrip line hybrid impedance converter comprises a high-impedance signal port, a low-impedance signal port, a coaxial cable and a microstrip line, wherein an inner conductor of the coaxial cable is connected between the high-impedance signal port and the low-impedance signal port; the outer conductor of the coaxial cable is connected with the low-impedance signal port through the microstrip line. The converter has the beneficial effects that the impedance converter which simultaneously meets the requirements of miniaturization, ultra wide band and high power capacity is provided, and the impedance converter simultaneously uses the microstrip transmission line and the coaxial cable transmission line.
Description
technical field [0001] The invention belongs to the field of mobile communication, in particular to a coaxial cable microstrip hybrid impedance converter. Background technique [0002] The impedance converter can transform the impedance of the transmission line so that it can better match the impedance of the microwave device and reduce reflection, so as to avoid problems such as increased loss, reduced power capacity, and reduced efficiency of the radio frequency system. [0003] In the current mobile communication standard, the frequency band of military and civilian communication continues to expand. In related technologies, as the bandwidth requirements continue to increase, the order of traditional multi-section transmission line impedance converters also continues to increase, resulting in large equipment volume, which is often difficult to meet The miniaturization requirements of equipment; and some broadband matching designs based on ferrite transformers or BULUN are...
Claims
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Login to View More IPC IPC(8): H01P5/08
CPCH01P5/085
Inventor 谭永杨阳赵磊刘胜杰
Owner TIANJIN 712 COMM & BROADCASTING CO LTD