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—In this paper an edge coupled microstrip coupler with defected ground structure is presented. A normally 7 dB coupler designed on Alumina substrate is converted into a 3 dB coupler by cutting single rectangular slot in the ground plane encompassing the two transmission lines. Other properties of backward wave coupler remain the same, except for a tighter… (More)
In this paper a survey of the gap-coupled microstrip antennas is presented. The need and types of gap-coupled microstrip antennas with recent research overview is discussed. By using the concept of gap-coupling the bandwidth of microstrip antenna can be increased. In this one patch is fed and the parasitic patch is excited by the gap-coupling. The concept… (More)
In this paper we discuss the method of designing a Chebyshev non recursive filter with linear phase for processing Images. Through this approach we design filters for the applications where stop band to pass band ration is important.
As a competition entry, KPF's design for Nanjing South Station was one of many stations planned as part of a major expansion of China's high-speed and regular service train lines. The station is sited in a slight valley, bisected through the center by a " green corridor " that connects the area's major parks. Inside the station, the green corridor takes the… (More)
In this paper we discuss a method of designing a linear phase 2 dimensional finite impulse response filter using orthogonal polynomials.
We are pleased to announce the sixth year of the Symposium on Simulation for Architecture and Urban Design (SimAUD) at the 2015 Spring Simulation Conference. related to the built environment are invited to participate and present original full papers, short papers, and extended abstracts. All submissions are peer-reviewed and considered for selection by the… (More)
In this article, we are presenting an innovative design of cross patch antenna on the substrate with ground plane partially removed. The antenna is fed by a microstrip line and yields an omnidirectional pattern. Two antennas with different dimensions are presented. Optimization of design leads to a bandwidth of 28% with sufficient directivity. The proposed… (More)
In this paper, the effects of shorting pin on resonant frequency of the gap-coupled circular microstrip patch antennas is presented. The effects of location of shorting pin and variations of its diameter as well as the effect of variation of gap distance between adjacent edges of the feed patch and parasitic patch of gap-coupled circular microstrip patch… (More)