DJSCOE

Mumbai, India
Mumbai, India

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Deshmukh A.A.,DJSCOE | Ray K.P.,SAMEER
IET Microwaves, Antennas and Propagation | Year: 2015

Slot cut compact shorted 60° sectoral microstrip antenna and its complementary configuration are proposed. The slot optimises the spacing between higher order TM1/4,1 and fundamental TM1/4,0 modes to yield broadband response. On air substrate of thickness 0.105l0, shorted 60° sectoral patch antenna yields a bandwidth (BW) (VSWR ≥ 2) of more than 600 MHz (821-1428 MHz, ~54%), whereas its complementary configuration yields BW of more than 480 MHz (655-1142 MHz, > 50%). The proposed antennas show a broadside radiation pattern with a gain of more than 3 dBi over the complete BW. © The Institution of Engineering and Technology 2015.


Deshmukh A.,DJSCOE | Kadam A.A.,DJSCOE | Ray K.P.,SAMEER
IETE Journal of Research | Year: 2013

The broadband and dual-band rectangular microstrip antenna is realized by cutting pair of toothbrush-shaped or step slots along the non-radiating edges of the patch. The toothbrush-shaped slot is said to introduce TM d0 mode in between the TM 10 and TM 20 modes of the rectangular patch and realizes broadband response. In step slot cut configuration, the slot introduces a mode near the TM 10 mode resonance frequency of the patch and realizes dual frequencies. In this paper, a detail analysis to study the effect of slots on the broadband and dual-band response in these rectangular microstrip antennas (RMSAs) is presented. It was observed that the slot does not introduce any mode but modifies the resonance frequency of higher order orthogonal mode and realizes broadband and dual-band response. The slot alters the direction of surface currents at higher order mode and gives similar radiation pattern characteristics over the broader bandwidth and at the dual frequencies. In broadband RMSA, a formulation of resonant length at modified TM 02 mode is proposed. The frequency calculated using the same closely agrees with the simulated result.


Deshmukh A.A.,DJSCOE | Deshmukh A.A.,D.J.Sanghvi College of Engineering | Ray K.P.,SAMEER
IETE Journal of Research | Year: 2011

The dual-band microstrip antennas (MSAs) are realized by placing the stub on the edges of the patch or by cutting a slot at an appropriate position inside the patch. The multiband MSAs are realized by using the combination of the slot and stub. In this paper, by cutting a rectangular slot on the radiating edge and half U-slot on the nonradiating edge of a rectangular MSA, a dual-and triple-band rectangular MSA are proposed. These slots are of nearly quarter wave in length and by changing their lengths, tuning of the frequencies is realized. Also, the multiport network models for these multiband MSAs are proposed, which helps in understanding the mode distributions at slot and patch frequencies. To realize the higher gain, the suspended configurations of these multiband antennas are also proposed. A good agreement is obtained between the simulated, multiport network model, and measured results. © 2011 by the IETE.


Deshmukh A.A.,DJSCOE | Ray K.P.,SAMEER
Microwave and Optical Technology Letters | Year: 2011

The broadband proximity-fed rectangular microstrip antenna (RMSA) is proposed. The proximity-fed antenna has larger bandwidth (BW) and is simpler in design when compared with L-probe-fed RMSA. Further, the BW of proximity-fed antenna is increased by using multiresonator or slot cut configurations. The proposed antennas give a BW of more than 300 MHz (>30%) with broadside radiation pattern with peak gain of 8.5 dBi. © 2010 Wiley Periodicals, Inc.


Deshmukh A.A.,DJSCOE | Nagarbowdi S.,DJSCOE | Phatak N.V.,DJSCOE
Proceedings - 2015 International Conference on Communication, Information and Computing Technology, ICCICT 2015 | Year: 2015

An extensive analysis to study the dual and wide band response in V-slot cut vertex truncated triangular microstrip antenna shorted on its both ends is proposed. First an analysis of V-slot cut triangular patch shorted on one of its ends is presented. The V-slot reduces the resonance frequencies of shorted TM1/4,0, TM3/4,0 and TM3/4,2 modes of the patch, to yield dual and wide band response. Further when V-slot cut patch is shorted on both its ends, the resonant modes involved in realizing dual and wide band response changes. In this configuration, V-slot reduces the resonance frequencies of dual shorted patch modes like TM10, TM12 and TM20, to yield dual band response. The proposed analysis gives an insight into the functioning of quarter wavelength and half wavelength shorted slot cut patch antennas. © 2015 IEEE.


Deshmukh A.A.,DJSCOE | Phatak N.V.,DJSCOE | Nagarbowdi S.,DJSCOE
Proceedings - 2015 International Conference on Communication, Information and Computing Technology, ICCICT 2015 | Year: 2015

Broadband proximity fed variations of shorted Sectoral Microstrip antennas, derived from equivalent isosceles triangular microstrip antennas are proposed. With decrease in Sectoral angle from 120° to 50°, the fundamental mode resonance frequency of shorted Sectoral patch decreases and it yields bandwidth of 1710 MHz (∼70%) in 120° Sectoral MSA to 436 MHz (∼45%) in 50° Sectoral MSA. The proposed Sectoral antennas show broadside radiation pattern with a gain of more than 5 dBi over most of the bandwidth. © 2015 IEEE.


Deshmukh A.A.,DJSCOE
International Journal of Microwave and Optical Technology | Year: 2011

The broadband microstrip antenna is realized by cutting a slot inside the patch. The Ψ-shaped microstrip antenna is realized by cutting the pair of rectangular slots on the edges of the Eshaped microstrip antenna and it gives more bandwidth as compared to the E-shaped patch. In this paper, the broadband response of the Ψ-shaped antenna is studied. The additional pair of slots cut inside the E-shaped patch modifies the higher order resonance frequency of the antenna and increases the bandwidth. © 2011 ISRAMT.


Halbe A.,DJSCOE | Joshi A.R.,DJSCOE
Procedia Computer Science | Year: 2015

A web page is a digital document created using Hyper Text Markup Language (HTML). A Web page is suitable for World Wide Web (WWW), which runs on a web browser and hence can be accessed across the globe. Graphical User Interface (GUI) is an interface, which provides ways for humans to interact with the system using HTML controls. In software design, look and feel of GUI comprises design aspects of the web page, the layout of the web page, HTML controls used on the web page, etc. Usually creation of a web page begins by drawing GUI design on a paper first. Web designers then design the web pages using web development tool on the paper. This paper proposes a novel approach to create HTML page automatically from the GUI design drawn on the paper. It considers a GUI design having various HTML controls such as radio button, checkbox, textbox, command button and label. A scanned image of GUI design is provided as an input to the system. Then, system segments the various HTML controls. The segmented HTML controls are then identified. Identified HTML controls are stored in XML database. Actually, XML database contains the name and position of the component on the GUI design. Finally, this XML file is parsed to generate HTML page. © 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license.


Mittal M.,DJSCOE | Sangani R.,DJSCOE | Srivastava K.,DJSCOE
Procedia Computer Science | Year: 2015

Security threats in a distributed environment are one of the greatest threats in IT and big data on distributed infrastructure makes it more complex and difficult to implement a fool proof security framework. Network provides the access path for both inside and outside attacks which makes it the key access point for any type of security threats. Securing distributed infrastructure is not an easy task as it is complex, it requires careful configuration and it is subject to human errors. Distributed environment should be open but with proper security framework in place. Testing security threats in this kind of a complex infrastructure, with huge and unstructured data is an on-going process. Hence we need a security testing model which is capable to identify any unauthenticated intrusion immediately. This paper presents a technique to test distributed environments against attacks on data integrity. © 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license.


Deshmukh A.A.,DJSCOE
AEU - International Journal of Electronics and Communications | Year: 2014

Various gap-coupled array configurations of ring microstrip antennas and rectangular slot cut ring microstrip antennas with proximity fed slot cut ring microstrip antenna for larger bandwidth and gain are proposed. The rectangular slot in ring patch reduces its orthogonal TM01 and TM02 mode resonance frequencies and along with TM10 modes of fed and parasitic ring patches, yields broadband response. The gap-coupled configuration with ring patch and slot cut ring patch yields bandwidth of nearly 430 MHz with broadside radiation pattern and peak gain of more than 9 dBi. By gap-coupling ring patches along all the edges of proximity fed pair of slot cut ring patch, a 3 × 3 ring microstrip antenna array is realized. It yields bandwidth of more than 460 MHz with peak gain of more than 10 dBi. To further improve upon the bandwidth, a 3 × 3 array of ring patches in which rectangular slot is first cut on the edges of ring patch which are gap-coupled along x-axis and further cut inside the patches which are gap-coupled along x and diagonal axes, is proposed. Both of these configurations yield bandwidth of more than 500 MHz (>45%) with a peak gain of around 10 dBi. © 2014 Elsevier GmbH.

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