The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper describes the design, development and performance of coaxial cavity band pass filters for transmit and receive chains of Standard-C terminal of International Maritime Satellite (INMARSAT) system.The band pass filters are at centre frequencies 1537.5 & 1636 MHz with bandwidths of 15 & 20 MHz with respect to centre.The sharp cut off has been achieved at 1626 & 1545 MHz for receive...
This paper describes the techniques for waveguide to suspended stripline transition as well as suspended stripline to waveguide transition. These transitions are used to realize crossbar mixers and band pass filters at 140 GHz. Back to back transitions with input/output waveguide WR-06 have been fabricated to measure insertion loss and return loss of the transition. Transitions have been simulated...
In this article, design and development of band pass filter at X-band with the FBW of ~ 4% on silicon substrate has been presented using the dual-behavior resonator (DBR) approach. The proposed topology uses single section coupled lines to maintain the compactness and can be easily realizable with the standard microwave integrated circuit fabrication techniques. The designed filter shows high selectivity...
This paper describes the design and development of band pass filter (BPF) at 140 GHz. Two different design techniques are used to realize the filter. First design uses capacitively coupled series resonators in suspended stripline configuration and second one uses metal insert filter (MIF) technique in waveguide configuration. Both the designs are modeled and optimized using CST (Computer Simulation...
Parallel coupled microstrip filters are extensively used as band pass filter in microwave communication because they are compact in size, easy to fabricate due to its planar structure. The responses of these filters are satisfactory for narrow bandwidth due to their relatively weak coupling. A severe limitation of the conventionally designed parallel coupled filters is parasitic response at harmonics...
This paper describes the design and development of surface acoustic wave (SAW) filters proposed to be used in the analog mesh-processor payload of GSAT-7 satellite. Four high performance SAW filters with center frequencies in the range of 176 MHz to 183 MHz and band widths in the range of 0.78 MHz to 2.28 MHz are being developed for the payload. Delta-function Model is used in the first order design...
To demonstrate the suitability of HTS filters we chose a four pole chebyshev band pass filter with 80 MHz band width, insertion loss of 0.5dB at 4035 MHz center frequency on LaAlO3 single crystal with YBCO HTS thin film. The filter was designed with four-pole quarter wave parallel-coupled line. To check the validity of filter design, two filters were fabricated using gold thin films of 0.5 microns...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.