Abstract
In this paper a compact Ultra Wide Band filter with notch at WLAN frequency is designed. The filter is a designed using coupled lines arranged in inter digital capacitor form. The filter is designed to allow microwave signals in the range of 2GHz to 7GHz with a notch at 5GHz. The measured results show the notch at 5GHz with transmission coefficient of -14dB. With uniform group delay in pass band and nonlinear group delay at notch frequency.
Highlights
Wireless systems have increased rapidly during the past generation, which has resulted in a fully covered frequency spectrum
In this paper a compact Ultra Wide Band filter with notch at WLAN frequency is designed
Aperture coupling integrates two bandpass filter designs for dual/tri band operation [1].Filter with multiple-mode resonators is categorized as stepped impedance resonator and is application oriented with transmitting signals in whole Ultra wide band (UWB) pass band of 3.1GHz – 10.6GHz [2]
Summary
Wireless systems have increased rapidly during the past generation, which has resulted in a fully covered frequency spectrum. Ultra wide band (UWB) technology has great potential in the development of various modern transmission systems, for instance, through-wall imaging, medical imaging, vehicular radar, indoor, and hand-held systems, etc. Due to this UWB filter with band rejection capabilities are in great demand. In [3] a wide bandpass filter consisting of three parallel coupled lines with the centre one connected to a radial open stub It operates at a centre frequency of 3GHz. In [4] a filter based on transversal signal interference principle was implemented. In this a paper a UWB filter is designed with notch at WLAN frequency of 5GHz
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