The purpose of this thesis is to provide insight into the potential benefits that Radio Frequency Identification (RFID) technology may provide USSOCOM and other commands in the Global War on Terror. This thesis will explain the basic concept behind RFID, and cite some of the current day applications of today that are revolutionizing the civilian sector. More importantly, this thesis will introduce conceptual security applications that could benefit USSOCOM today, highlighting the possible successes and downfalls that these applications might include. / US Army (USA) author

Gases at satisfactory pressures fluoresce in the presence of radio frequency radiation (6). Such fluorescent gases have been used to probe fields of radio frequency oscillation and their emission spectra have been recorded and studied. Ions with multiple charges also exist in these gases, (6). In 1941 Oliver (12) observed the fluorescence of an isobutane- isobutene gaseous mix flowing to a pump through a glass tube which was wrapped by a spiral antenna of a sevenmegacycle transmitter. A white deposit was noticed at a bend in the tubing on the pump side of the fluorescing section of the gas (12, p. 8). In 1957 Blacknall (3) studied the fluorescence and reaction products of propylene in the antenna region of sevenmega- cycle radiation, The oscillator employed by Blacknall was an ARC-5/T-22 military surplus transmitter of range 7.00 to 9.10 megacycles, which he operated at 7.00 megacycles. Blacknall observed a drop in pressure and the formation of a brown deposit in the region of the coil. Blacknall did not report an analysis of this product. In 1959 Armstrong (1) repeated Blacknall's experiments and modified Blacknall's apparatus into an improved design. He also performed an analysis on Blacknall's product. Blacknall used a vertical open-end mercurial manometer with which to measure pressure in his system and as a result introduced mercury vapor into his system. Armstrong tried to minimize the amount of mercury introduced by covering his manometric mercury with a layer of octyl sebacate, "octoil". Armstrong used a spiral-would antenna wrapped around his reaction vessel and reported the formation of spiral brown rings coincident with the copper wire of the antenna. There was a white product deposited in a spiral interlaced with the spiral of dark brown material. No definite identification was reported by Armstrong other than reporting, his solid material as isotactic polypropylene. Other work on electrodeless discharge of organic chemicals has been done in 1960 by Durward Smith and William Smith (13), in 1961 by Jimmie McCarty (10), and in 1963-64 by David Flinn (4).

No description available.

The recent demand for wireless transceivers has created a flurry of research into nontraditional receiver architectures. The homodyne receiver, because of its high degree of integration, low complexity and low power consumption, has surfaced a desirable alternative to the well-known heterodyne receiver. However, distortions such as gain and phase imbalance severely degrade the performance of the homodyne receiver. These imbalances, which are caused by impairments of the employed analog devices, are intensified because quadrature demodulation is performed at very high frequencies with a weak input signal. Thus, there exists a great need for low complexity techniques to compensate for these imbalances. In this thesis, we present a new, simplified method for the estimation and the correction of the gain and phase imbalances in a homodyne receiver. The estimation process is based upon carrier re-injection during idle periods of the mobile unit and thus requires only few additional analog components. This approach will be shown to yield tight estimates of the gain and the phase error. Additionally, the correction is performed in the digital domain and thus can be implemented on a digital signal processor. The effectiveness of this method is demonstrated via simulations of an IS-54 transceiver. IS-54 is the North American TDMA standard for dual-mode cellular systems. / Graduation date: 1998

Thesis (M.S.)--Montana State University--Bozeman, 2006. / Typescript. Chairperson, Graduate Committee: James P. Becker. Includes bibliographical references (leaves 120-121).

No description available.

Thesis (M.S.)--Worcester Polytechnic Institute. / Keywords: thermal effects, MEMS switches, RF switches. Includes bibliographical references (p. 123-127).

Title from PDF of title page (University of Missouri--Columbia, viewed on Feb. 19, 2008). The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Dr. Luis Occeña, Thesis Supervisor. Includes bibliographical references.

No description available.

No description available.