A radio frequency coaxial matching load
A radio frequency coaxial and outer conductor technology, applied in the microwave field, can solve the problems of low frequency, non-adjustable voltage standing wave ratio, difficult impedance matching, etc., and achieve the effect of low standing wave ratio
Active Publication Date: 2019-07-09
THE 41ST INST OF CHINA ELECTRONICS TECH GRP
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Problems solved by technology
The resistance of the existing columnar resistive coaxial load is a standard cylinder, the impedance matching is difficult, the frequency of use is low, the voltage standing wave ratio is poor, and the voltage standing wave ratio is not adjustable; the microstrip chip coaxial load microstrip chip and the inner The contact structure of the conductor is complex, the anti-vibration ability is poor, and the cost is high
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[0025] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:
[0026] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "vertical", "horizontal", "inner" and "outer" are based on the The orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as limiting the present invention . In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.
[0027] In the description of the present invention, it should be noted that unless otherwise specified and limited, ...
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The invention discloses a radio frequency coaxial load, which comprises a male outer conductor, an outer conductor is connected inside the male outer conductor, a transmission cavity is arranged inside the outer conductor, and one end of the transmission cavity is set as a two-stage cone Shape transformation cavity; the transmission cavity is provided with an inner conductor, an inner conductor, a columnar resistor and a contact piece connected in sequence in the axial direction, and the inner conductor of the male head is set on the dielectric support; the dielectric support and the outer One end of the conductor is connected; the two ends of the columnar resistor are provided with a stepped cylinder; the inner conductor is provided with an inner conductor hole, the stepped cylinder at one end of the columnar resistor extends into the inner conductor hole, and the stepped cylinder at the other end of the columnar resistor The body is elastically clamped on the contact piece, and the columnar resistor is arranged in the two-stage tapered transformation cavity.
Description
technical field [0001] The invention belongs to the microwave field, in particular to a radio frequency coaxial matching load. Background technique [0002] Coaxial load is a microwave passive single-port device, which is mainly used to absorb energy in transmission and improve impedance matching performance. It is widely used in radio equipment, electronic instruments and various microwave equipment, and is an important part of radio frequency transmission system. one. According to the structure of the microwave absorbing part, the coaxial load can be divided into columnar resistive type and microstrip chip type. The columnar resistive coaxial load uses a standard cylindrical 50 ohm resistor to absorb microwave energy; the microstrip chip coaxial load absorbs microwave energy through a 50 ohm thin film circuit on a ceramic chip. [0003] Existing coaxial loads are divided into two structural forms: columnar resistive type and microstrip chip type. The resistance of the e...
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IPC IPC(8): H01P1/26
CPCH01P1/266
Inventor 刘长春赵建波许晓龙王金龙王方杰马玉涛
Owner THE 41ST INST OF CHINA ELECTRONICS TECH GRP