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In this paper a very compact, ultrawideband (UWB) antenna with Wi-MAX band notched characteristics is presented. The antenna is operating from 3.1–14GHz frequency band for VSWR ≤ 2 and provides notched band characteristics from 3.3–3.7GHz. A notched band characteristic is realized by strategically adding two quarter wavelength parasitic element at the edges of radiating patch. The simulated results...
This work targets design of microstrip patch antenna that will resonate at two different band of frequencies which can be used as elements of array for MIMO system. The proposed dual band antenna operates at ISM band (2.37Ghz–2.48Ghz) and Wimax band (3.46 GHz–3.56 GHz).Bandwidth of operation offered by the given microstrip antenna in ISM band is around 110 Mhz while in Wimax band is 110 Mhz. The designed...
A compact wideband printed monopole antenna with band notch characteristics is proposed and investigated. Introducing a two corner notches at the lower edges of radiating patch and notch in destructive ground surface (DGS) increased bandwidth from 3–11GHz. By inserting an inverted U-slot in the radiating plane 3.3–4.2GHz (Wi-Max and C-band satellite communication) band notch characteristics is obtained...
Optic disc (OD) is an important part of the eye. OD detection is an important step in developing systems for automated diagnosis of various serious ophthalmic diseases like Diabetic retinopathy, Glaucoma, hypertension etc. The variation of intensity within the optic disc and intensity close to the optic disc boundary are the major hurdle in automated optic disc detection. General edge detection algorithms...
Optic disc (OD) is an important part of the eye. In developing systems, automatic OD detection is an important step for automated diagnosis of various serious ophthalmic diseases like Diabetic retinopathy, Glaucoma and hypertension, etc. The variation of intensity within the OD and intensities close to the OD boundary are the major hurdle in automated OD detection. General edge detection algorithms...
In this paper design and optimization of low cost, wideband, compact printed rectangular ultra wide band (UWB) antenna at lower edge frequency is proposed and investigated. Antenna is fed by microstrip line. Antenna is having a rectangular patch and modified ground structure. Bandwidth enhancement is obtained by modifying the destructive ground plane structure (DGS). Antenna has been simulated using...
In this paper design of microstrip patch antenna with reduced (destructive) ground plane is proposed. Parametric study is carried out by changing the gap distance between patch & destructive ground plane, strip line width and feed position of microstrip line with respect to radiating patch and its effect on performance parameter of MSA is observed. Design is simulated using IE3D software based...
Proposed compact broadband microstrip patch antenna has been designed by increasing the substrate height and inserting the slots at different angles. At the center frequency of 2.9955 GHz impedance bandwidth of 153.6 MHz, return loss of •35.6595 dB, Gain of 8.57dBi and very good radiation pattern in the broadside direction is achieved. Which can be used for radio navigation and in radar for detecting...
Adaptive Filters are generally implemented in the time domain which works well in most scenarios however in many applications the impulse response becomes too long, increasing the complexity of the filter beyond a level where it can no longer be implemented efficiently in the time domain. An example of where this can happen would be in acoustic echo cancellation applications in hands free telephony...
A compact MSA for GPS application at 1575 MHz, having 8 slits is presented. The said MSA is designed and simulated in IE3D and measurements are made using Agilent Vector Network Analyser E5062A.
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