Improved microstrip hairpin-line bandpass filters for spurious response suppression


A new fractal technique is applied to hair-pin microstrip bandpass filters for the second spurious suppression. The coupled edges of hair-pin microstrip resonators are changed by a replacement fractal to equalise the odd-mode and even-mode part velocities thus that the closest spurious harmonic can be suppressed. Simulated and measured results show that the second spurious level is reduced below 30 dB for a 1 GHz and 25p.c bandwidth bandpass filter. An analysis is presented to point out the consequences of tap point height on fundamental parameters of the filters. As well, the circuit size is reduced by eleven% compared to the conventional filter.

Did you like this research project?

To get this research project Guidelines, Training and Code... Click Here

PROJECT TITLE :Improved Low-Complexity Sphere Decoding for Generalized Spatial Modulation - 2018ABSTRACT:During this letter, two types of improved sphere decoding (SD) algorithms for generalized spatial modulation (GSM), termed
PROJECT TITLE :Improved Companding Transform for PAPR Reduction in ACO-OFDM-Based VLC Systems - 2018ABSTRACT:In this letter, an improved linear nonsymmetrical transform (ILNST) is proposed to scale back the height-to-average power
PROJECT TITLE :An Improved Belief Propagation Decoding of Concatenated Polar Codes With Bit Mapping - 2018ABSTRACT:Bit-channels of finite-length polar codes aren't totally polarized, and therefore the negative influences from
PROJECT TITLE :ICE Buckets: Improved Counter Estimation for Network Measurement - 2018ABSTRACT:Measurement capabilities are essential for a variety of network applications, such as load balancing, routing, fairness, and intrusion
PROJECT TITLE :FPGA Implementation of an Improved Watchdog Timer for Safety-critical Applications - 2018ABSTRACT:Embedded systems that are used in safety-important applications need highest reliability. External watchdog timers

Ready to Complete Your Academic MTech Project Work In Affordable Price ?

Project Enquiry