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Background Duchenne Muscular Dystrophy (DMD) is the most common muscle disease in children, and there are no effective therapies for DMD or Becker Muscular Dystrophy (BMD). Currently, targeted gene therapy treatments have emerged. As a result, genetic diagnosis is the basis of treatment. In addition, genetic and prenatal diagnosis significantly reduces their incidence rates. This study combines the...
This letter presents one absorptive bandstop waveguide filter utilizing two couplers. The proposed absorptive bandstop filer (ABSF) with four ports is achieved by combing two quadrature couplers with two conventional waveguide bandstop filters, unwanted energy within the stopband will be absorbed by absorptive port instead of reflecting to incident port. The theory is analyzed and a waveguide bandstop...
A novel absorptive bandstop microstrip filter utilizing two couplers is presented in this letter. The proposed absorptive bandstop filer (ABSF) with four ports is achieved by combing two quadrature couplers with two conventional microstrip bandstop filters. Unwanted energy within the stopband will be absorbed by absorptive port instead of reflecting to incident port so that the property of absorption...
In this paper, a novel hybrid ridged substrate integrated waveguide (RSIW) and ground coplanar waveguide (GCPW) structure coupler is presented. In this coupler, the RSIW and GCPW are arranged back to back to realize high-integration. Such hybrid coupler combines the broadband advantage of RSIW and the flexibility of GCPW. According to the simulated results, it can operate at 28 GHz and achieve a relative...
In this paper an X band 2×8 half mode SIW resonant transverse slot antenna array is designed. The power divider and the radiating slots are designed integrated with compact structure. The results show that the band is about 3.8%, and maximum gain is about 13.5 dB. The antenna beam scans with frequency. The maximum gain direction deviates from the normal of antenna with42o at 9 GHz.
Based on theory of micro strip filter, the letter adopts the structure of half-wave width hairpin resonator and tapped feeding line in designing a six-order X-band band pass filter. The centre frequency is 8.75 GHz, ranging from 8.1 to 9.4 GHz. The filter has characteristics of wide stop-band and good sideband suppression. By tapping feeding line and controlling the position of two transmission zeros,...
This paper presents a compact wide stop band bandpass filter using loaded feeding structure to enhance the out-of-band performance. The filter is constructed by three shorted parallel coupled stepped impendence resonators(SIRs), and is fed by tapping microstrip lines with open stubs loaded. The three order bandpass filter effectively suppresses the spurious pass band so that it has a so wide stop...
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