Abstract
Dual mode microstrip multi-bandpass filter is proposed with tree fractal slot on a square patch resonator. The tree fractal slotted resonators are generated from conventional square patch using an iterative tree fractal generator method. A single square patch is used for realizing both dual and tri-bandpass filters exploiting the dominant, higher order and its corresponding degenerate resonant modes by the tree fractal iteration on the diagonal unequal slots on the square patch.The resonant peaks, transmission zeros and bandwidth of the pass bands can be tuned by varying the length and width of the fractal slot. By optimizing various parameters dual mode dual and tri-band pass filters are simulated, fabricated and measured. The proposed filter finds application in wireless communication devices and falls in the bands of GSM, WLAN, Bluetooth, Zigbee, WiMax and WiFi.
Highlights
Wireless communication applications necessitate the deployment of transceivers in radio frequency range with enhanced performance, compactness, low weight, and multiband characteristics
This paper presents a tree fractal slotted square patch resonator exciting the dominant and higher order modes
Tree fractal iteration performing on the diagonal slots, excites and couples the higher order and its corresponding degenerate modes
Summary
Wireless communication applications necessitate the deployment of transceivers in radio frequency range with enhanced performance, compactness, low weight, and multiband characteristics. Microwave filters are inevitable part of radio frequency transceivers which play a key role in effectively transmitting the desired signals in certain pass-band regions while attenuating all the undesired signals in the remaining regions. R.N Baral et al reported several techniques and initiatives made for improved response and enhanced performance of microwave planar filters [3]. Dual mode multiband filters can be realized by coupling the resonant and its corresponding degenerate modes. The degenerate modes of the square resonator are excited and coupled using orthogonal feed lines and in addition to any of the methods like crossed slots, shorting pin, addition of patches and corner patch cuts [4]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Indonesian Journal of Electrical Engineering and Informatics (IJEEI)
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
