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Govind Ballabh Pant University of Agriculture and Technology, Pantnagar

After independence, development of the rural sector was considered the primary concern of the Government of India. In 1949, with the appointment of the Radhakrishnan University Education Commission, imparting of agricultural education through the setting up of rural universities became the focal point. Later, in 1954 an Indo-American team led by Dr. K.R. Damle, the Vice-President of ICAR, was constituted that arrived at the idea of establishing a Rural University on the land-grant pattern of USA. As a consequence a contract between the Government of India, the Technical Cooperation Mission and some land-grant universities of USA, was signed to promote agricultural education in the country. The US universities included the universities of Tennessee, the Ohio State University, the Kansas State University, The University of Illinois, the Pennsylvania State University and the University of Missouri. The task of assisting Uttar Pradesh in establishing an agricultural university was assigned to the University of Illinois which signed a contract in 1959 to establish an agricultural University in the State. Dean, H.W. Hannah, of the University of Illinois prepared a blueprint for a Rural University to be set up at the Tarai State Farm in the district Nainital, UP. In the initial stage the University of Illinois also offered the services of its scientists and teachers. Thus, in 1960, the first agricultural university of India, UP Agricultural University, came into being by an Act of legislation, UP Act XI-V of 1958. The Act was later amended under UP Universities Re-enactment and Amendment Act 1972 and the University was rechristened as Govind Ballabh Pant University of Agriculture and Technology keeping in view the contributions of Pt. Govind Ballabh Pant, the then Chief Minister of UP. The University was dedicated to the Nation by the first Prime Minister of India Pt Jawaharlal Nehru on 17 November 1960. The G.B. Pant University is a symbol of successful partnership between India and the United States. The establishment of this university brought about a revolution in agricultural education, research and extension. It paved the way for setting up of 31 other agricultural universities in the country.

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  • ThesisItemOpen Access
    A comprehensive study of imact of contact materials on characteristics of carbon nanotube field effect transfer
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2016-01) Kohli, Vinod Chandra; Sharma, K.K.
  • ThesisItemOpen Access
    Reconstruction of motion blurred image using wavelet transform and neural committee machine
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2016-08) Agarwal, Saitu; Mathur, Sanjay
    Image Restoration is the process of obtaining the original image by using the knowledge of the degrading factors. Degradation comes in many forms such as blur, noise, and camera shake. One of the disadvantages of existing method is that some methods make restrictive assumptions on the Point Spread Function or the true image that limits the algorithm's portability to different applications in conventional approach; deblurring filters are applied on the degraded images without the knowledge of blur and its effectiveness. The proposed algorithm is used for the reconstruction of motion blurred images. Two factors which mainly affect an image are length of blur and angle of blur. In this thesis, concept of Wavelet decomposition and neural committee machines are applied for restoring problems in which images are degraded by blur function and corrupted by noise. In the first step of reconstruction, blurred image is decomposed using wavelet transform based on multi resolution analysis and then correlation analysis is performed to reduce the dimensionality of image pattern space and in the next step a multi layer feed forward neural network based on ensemble averaging technique is used to estimate the parameter which causes blurring. The proposed methodology uses highly non linear back propagation neuron for image restoration to get a high quality of restored image. The estimated parameters are used to calculate the value of degradation factor corresponding to blurred image and then deconvolution is performed to get the original image. Results show that the images restored using the proposed method have mean square error in the range of 0.001-.005 and peak signal to noise ratio in the range of 69dB-75dB.
  • ThesisItemOpen Access
    Multiband metamaterial antenna with omega shaped SRR structure for wireless communication
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2016-07) Santosh Kumar; Paras
    Metamaterial as a special type of structure using natural electromagnetic material having EM properties can be very useful in different fields. It can play crucial role in communication field and can provide multiband characteristics with wider bandwidth and high gain as required in all field of RF communication on very small sized structures. The proposed antenna has been designed by using TLM equations that calculate the rectangular patch of size 40x40 mm2 having resonant frequency of 5 GHz and on the 1.58 mm height of substrate. The substrate material used is FR4 which is having a permittivity of 4.4 and loss tangent of 0.02. To enhance the performance, the rectangular patch has been changed to the circular patch that has radius of 7 mm at a substrate height of 1.58 mm and also size of the proposed antenna is reduced to 24.5x30mm2. The proposed antenna has a combination of conducting wire and omega shaped SRR structure to obtain metamaterial characteristics. The inter-digital structure of hexagon SRR has been used to achieve the negative permittivity and closed ring resonator to achieve the negative permeability and hence the combined structure can achieve the resonance in desired frequency band. The proposed antenna is simulated on HFSS software. Simulation results show that there are wide ranges of multi-bands from 1.4-7.6GHz, 9-11.4GHz, 11.6-15.25GHz and 15.5-17.6GHz and corresponding bandwidths are 6.2GHz, 2.4GHz, 3.65GHz and 2.1GHz respectively. The average gain of near 7.0 dB has been achieved. Proposed antenna is fabricated using lithography process. Its parameters have been tested on PNA. Radiation pattern is measured in an anechoic chamber. There is a good agreement between the simulated and fabricated results. The proposed antenna is reduced in size, having multiple bands with higher bandwidth as compare to previously fabricated antenna. The proposed antenna has application in Wi-MAX, WLAN, satellite communication, radar communication, space vehicles etc.
  • ThesisItemOpen Access
    Hexagonal-patch slotted partial-ground ultra wideband metamaterial antenna for wireless applications
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2016-07) Mittal, Paridhi; Paras
  • ThesisItemOpen Access
    Hexagonal-patch slotted partial-ground ultra wideband metamaterial antenna for wireless applications
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2016-07) Mittal, Paridhi; Paras
    Metamaterial, due to their non conventional EM properties improves the performance of antenna in terms of gain, bandwidth and is useful in the field of wireless communication. Ultra Wide Band (UWB) communication system has become an attractive topic in wireless communication since the Federal Communication Commission (FCC) has allocated utilization of the 3.1–10.6 GHz unlicensed band for commercial UWB application. The main objective of this thesis is to develop a multiband antenna in UWB frequency range using metamaterial for wireless application. The proposed antenna has been designed using Transmission Line Model at setup frequency of 4.6 GHz. The simulation of the antenna is done using HFSS 15.0 to calculate the different parameters. The simulated S11 is below -10 dB in the frequency range from 2.8 to 4.8 GHz, 7.2 to 7.7 GHz, 9.1 to 9.9 GHz, 13.3 to 13.9 GHz, and 15.2 to 17.6 GHz. The bandwidth obtained is 2 GHz, 0.5 GHz, 0.8 GHz, 0.6 GHz, and 2.4 GHz, respectively with VSWR in accordance with the S11. Two metamaterial SRR has been used to increase the gain of the antenna. The slots in the patch and ground are made to increase the resonating bands. The proposed antenna is fabricated on FR4substrate and SMA connector is soldered to fabricated antenna and connected to PNA for the measurement of S11 and VSWR. The measured S11 shows that there are dips at 2.6 GHz, 4.7 GHz, 7.4 GHz, 9.5 GHz, 13.6 GHz, 15.7 GHz and 17.34 GHz measuring -17.37dB, -21.05 dB, -26.21 dB, 51.81 dB, -19.41 dB, -19.21dB and -11.77 dB. Radiation pattern is measured in an anechoic chamber. The proposed antenna has been fabricated and the measured results are found to be close with the simulated results.
  • ThesisItemOpen Access
    Performance improvement of a slot antenna using SRR and modified ground plane
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2016-10) Pant, Aadaya; Gangwar, R.P.S.
  • ThesisItemOpen Access
    A novel compact wide band notched slot antenna with enhanced bandwidth for wireless applications
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2016-08) Saxena, Ankur; Gangwar, R.P.S.
    In recent years, there has been a substantial amount of research in the ultra wide band technology for innovation in wireless applications. The electronic gadgets enabled with this technology may be enforced in wearable/handy products. Such type of specific applications excites the challenges to researchers and industries to make this technology different from other conventional antennas of limited bandwidth. Compact size and volume are critical constraints for wearable and portable device applications. A reliable performance for the entire bandwidth along with radiation pattern is required for high data rate applications. Therefore, it has become necessary to develop an antenna with compact size, enhanced bandwidth and notched characteristics. In view of the above, an attempt has been made to develop a novel compact wide band notched slot antenna with enhanced bandwidth for wireless applications. In this dissertation, ultra wide band antennas with an objective to reduce antenna size with increased bandwidth are studied. Further, to minimize the interference problem, the implementable band notching techniques are explored. Initially, UWB antenna is developed using FR-4 substrate of thickness 1.6 mm. A modified rectangular patch in a rectangular slot in ground plane is designed to achieve large bandwidth. Two symmetrical semi-circular slots are implemented to enhance the impedance matching from 15 GHz and above frequency range. A T-stub inside an elliptical slot within the patch is created to achieve band-notching characteristics. The proposed design is simulated using HFSS. The design is fabricated and measured. The simulated and measured results in terms of reflection coefficient, radiation pattern and peak gain is compared. The novelty of this research work is the development of compact antenna with overall dimensions of 14x14 mm2 and antenna bandwidth of 161%. The size and bandwidth are compared with previously designed antennas.
  • ThesisItemOpen Access
    Metaheuristic approaches for adaptive array signal processing in smart antenna
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2016-07) Sharma, Abhinav; Mathur, Sanjay