I would like to express my sincere gratitude to my supervisor, Dr. Abas Sabouni for his guidance, patience and invaluable comments. Thank you very much, Dr. Sabouni for giving me the opportunity to pursue this project and for all your support, encouragement and guidance throughout this work.
My heartiest thanks and most profound appreciation is due to my parents, my wife, and my lovely sons (Meshal, Khalid, and Basel) for standing beside me, encouraging and supporting me all the time I have been working on this project.
Finally, I would also like to thank all the members of staff of Electrical Engineering and Physics Department at the University of Wilkes, for the active contribution while perusing my master degree, and for giving me the
…show more content…
However, after integration, slight pattern distortion may be observed due losses in the solar cell.
Figure 4 27. Radiation pattern comparison of proposed solar antenna for all configurations.
4.6 Measurements
A prototype patch antenna is simulated and measured to explain the measurements procedure of a solar antenna for all configurations. The design layout of this patch antenna is illustrated in Figure 4-28. (a) (b)
Figure 4 28. Design layout (a) simulated patch (b) fabrication and measurement of the patch.
4.6.1 Simulated and Measured S11 of Patch Antenna
Simulated and measured S11 of the designed patch antenna is presented in Figure 4 29. The return loss results reveal that this antenna has multi-band response which includes 1.31, 1.67, 2.37 and 2.83 GHz. The simulations and measurements are completely agreed and matched. (a)
(b)
Figure 4 29. Simulated vs. measured S11 of patch antenna
(a) simulated and (b) measured.
4.6.2 Simulated and Measured S11 of Patch with Ag-Parallel
The design layout and measurement process of the patch with Ag-parallel configurations is presented in Figure 4-30. (a) (b)
Figure 4 30. Design
Distance of the nearest point of the improvements to the buffer edge and to the 12-ft. primary structure setback.
SWBAT connect unfix cubes to precisely measure by measuring only what is necessary with no gaps or overlays
The PV module has been designed by considering the irradiance, temperature and number of PV cells connected in series and parallel. Figure 5.1 shows the simulink model of solar system. Here only function file used to show the solar system, the program code is given in the appendix. Here we are using a battery. The system is generated 240volt and current is 2.9 A.
Because the hemispherical shape had error bars which did not overlap, the data corrections were
This constitutes a proposal tendered by Invent One, LLC. to fabricate and assemble ten pieces of the antenna mount specified in Department of the Navy, Office of Space and Naval Warfare Systems Command, solicitation number N65236-15-Q-1021. Invent One, LLC was established in 2001 as a small job shop with two young ambitions guys with very limited fabrication equipment. Since then we have become a very well respected and diversified custom contract fabricator focused on producing high-quality, close-tolerance parts and assemblies. We propose to manufacture and assemble the antenna mount to the exact specifications required. We will utilize the expertise of our staff consisting of six engineers, eight engineering technicians, three project
Lockheed Martin (LM) conducted a thorough review of all the test data on the CD Band Antenna and conclude that Cobham (CAS) has met all the Qualification Test criteria for the CD Band Antenna. Cobham also completed their 2nd Cd Band antenna. The Supplier Quality Engineer (SQE) and the Technical Subcontract Manager (TSM) were on-site to help facilitate the final processes step and to drive the units out the door. Also shipped this week was (1026-5) Low Band antenna. The current forecast is still tracking to have 3 additional CD Band completed before the end of the month.
The other part of the cannon is the base, which will be made in the vertical and horizontal mills, along with the band saw. The vertical mill can be used for plunge cuts and drilling, while the horizontal mill can be used for milling at various angles. The band saw is used to cut materials. The base first has to be prepped for cutting using the Dykem Layout Fluid. First paint 2 adjacent sides of the block with the fluid. Using a square, make a reference line approximately 1/16” from one end of the block. Next draw 3 separate vertical lines on the block, the first one being ½” from the reference line, the next being 1” from the reference line, and the last being 1 5/8” from the reference line. The next vertical line will be made 2 ¾” from the reference line, symbolizing the length of the base. The next three lines will be horizontal, using the top of the base as a reference line. The first horizontal line will be ¼” from the top of the base and stop at
Next, I have to express great thanks for my research supervisor, Dr Ni Luh Nyoman Seri Malini, S.S M.Hum and I Nyoman Tri Ediwan, S.S M.Hum, without their guidance and dedicated
I take this opportunity to express my sincere thanks and deep gratitude to all those people who extended their whole hearted co-operation and have helped me in completing this project successfully.
Start from the bottom on the mud weight curve (Point A); draw vertical line up to the designed fracture gradient curve (Point B). Point B is the initial estimated intermediate casing setting depth. The interval between Point A and Point B is the initial estimated production casing or liner interval.
The dx, dt were found using Fig.2. dt was found where the Crank Nicolson line started to fluctuate heavily at around 14s (Fig.3), and dx was found when the line started to bend on the right hand side. Using the maximum temperature and tile thickness, the parameters, nt and nx, were calculated and used in the ‘shuttle’ function.
Case II: The beam was turned around in such way that the shortest side of the cross section is on the support. The steps described in Case I was repeated and data was recorded.
The configuration of a single AC- MPA element used for the antenna array design is shown in Fig. 2. The rectangular microstrip patch of width and length is placed on
A microstrip antenna consists of conducting patch and a ground plane separated by dielectric substrate. This concept was undeveloped until the revolution in electronic circuit miniaturization and large-scale integration in 1970. The early work of Munson on microstrip antennas for use as a low profile flush mounted antennas on rockets and missiles showed that this was a practical concept for use in many antenna system problems. Various mathematical models were developed for this antenna and its applications were extended to many other fields. The number of papers, articles published in the journals for the last ten years. The microstrip antennas are the present day antenna designer,s choice. Low dielectric constant substrates are generally preferred for maximum radiation. The conducting patch can take any shape but rectangular and circular configurations are the most commonly used configuration. A microstrip antenna is characterized by its length, width, input impedance, gain and radiation patterns. Various parameters, related calculation and feeding technique will be discussed further through this chapter. The length of the antenna is about half wavelength of its operational frequency. The length of the patch is very critical and important that result to the frequency radiated.
This project is a result of my hardwork & the cooperation of those people who were associated with me in the training program. So I want to thank them from my bottom of the heart.