Wide stopband reconfigurable filter power splitter based on sir and dgs structure
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A technology for reconstructing filters and power splitters, applied in waveguide devices, circuits, connecting devices, etc., can solve the problems of fixed frequency band, poor filtering performance and harmonic suppression performance, so as to reduce interference, well suppress harmonics, Solve the effect of single frequency
What is AI technical title?
AI technical title is built by PatSnap AI team. It summarizes the technical point description of the patent document.
A technology for reconstructing filters and power splitters, applied in waveguide devices, circuits, connecting devices, etc., can solve the problems of fixed frequency band, poor filtering performance and harmonic suppression performance, so as to reduce interference, well suppress harmonics, Solve the effect of single frequency
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[0039] The present invention is described in further detail below in conjunction with accompanying drawing:
[0040] see figure 1 , the power splitter of the present invention includes a microstrip dielectric substrate 1, a grounded metal plate 2 is arranged on the bottom surface of the microstrip dielectric substrate 1, a defective ground structure 11 is provided on the grounded metal plate 2, and a DC power supply structure 12 is installed in the defective ground structure 11 ; The upper surface of the microstrip dielectric substrate 1 is provided with a microstrip line at the input / output port, an isolation element, a non-metallized via hole 5, a shunt 6, a SIR-T branch 7, a SIR resonator 8, and a controllable Components and Transmission Microstrip Line 10.
[0041] The left end of the upper surface of the microstrip dielectric substrate 1 is provided with an input microstrip line 3-1, and the signal input end of the input microstrip line 3-1 is provided with a signal inpu...
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Abstract
The invention discloses a wide-stop-band reconfigurable filter type power divider based on SIR and DGS structures. SIR and DGS structures are set at a common power divider. One path of alternating-current signals entering the power divider is split into two paths and the two paths of signals are transmitted to two SIR resonators for processing by two SIR-T branches, thereby realizing harmonic filtering and frequency and bandwidth adjustment. An isolation resistor for isolating the two paths of signals is arranged behind the SIR-T branches, so that coupling of the two paths of signals during the transmission process is prevented. According to the invention, the DGS structure is arranged on the ground metal board, so that the power divider has the broadband group characteristic. The usage frequency band range of the power divider is extended; the functions of filtering and wide stop band are realized; and thus the strict requirement of the power divider by the modern communication systemis met.
Description
【Technical field】 [0001] The invention belongs to the field of electronic devices, and relates to a wide stop band reconfigurable filter type power divider based on SIR and DGS structures, which can be used in wireless communication systems such as communication and radar. 【Background technique】 [0002] With the rapid development of radio frequency / microwave circuits, the requirements for the integration, miniaturization and multi-frequency characteristics of devices are getting higher and higher. Therefore, the research and design of reconfigurable (reconfigurable frequency, bandwidth, etc.) power splitters with integrated filtering functions have attracted more and more attention. A power splitter is a microwave device that can distribute an input signal to two or more output ports according to a certain ratio, and its function is to realize the power distribution of the signal. There are many implementation forms of multifunctional power splitters, such as: power splitt...
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