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Transmission lines for IR signal rou...

Mandviwala, Tasneem.

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Transmission lines for IR signal routing.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Transmission lines for IR signal routing./
Author:	Mandviwala, Tasneem.
Description:	123 p.
Notes:	Advisers: Glenn D. Boreman; Brian A. Lail.
Contained By:	Dissertation Abstracts International67-09B.
Subject:	Engineering, Electronics and Electrical. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3233662
ISBN:	9780542868566

Transmission lines for IR signal routing.
Mandviwala, Tasneem.

Transmission lines for IR signal routing. - 123 p.

Advisers: Glenn D. Boreman; Brian A. Lail.

Thesis (Ph.D.)--University of Central Florida, 2006.

In this dissertation, the design, fabrication, and characterization of coplanar striplines, vias, and microstrip lines is investigated, from the point of view of developing interconnections for antenna-coupled infrared detectors operating in the 8- to 12-micron wavelength range. To our knowledge, no previous efforts have been made to study the performance of metallic-wire transmission lines at infrared frequencies. Both the design and fabrication of these structures present unique challenges. Because of attenuation and dispersion issues, the analytical formulas for transmission-line parameters that are valid below a few hundred GHz are not applicable in the infrared. Therefore, numerical modeling was performed to characterize the coplanar striplines and microstrip structures in terms of transmission-line parameters: characteristic impedance, attenuation constant and effective index of refraction. These parameters were extracted by fitting the computed impedance as a function of transmission-line length to the usual impedance transformation equation. The material properties used in the model are realistic, having been measured at the frequencies of interest by infrared ellipsometric techniques. The transmission-line parameters cannot be measured directly in the infrared, so experimental validation was carried out by measuring the response of a bolometer, which was connected to a dipole antenna by different lengths of both the coplanar and microstrip transmission lines. The modeled and measured responses for both types of transmission lines was in good agreement. A third type of signal-routing structure was also investigated, that of the vertical via, essentially a low-frequency connection that facilitates location of the bondpads away from the plane of the antenna. In the configuration studied, the vias pass vertically down through the SiO 2 isolation layer and a groundplane, which provides electromagnetic isolation between the antenna and the structures that allow for signal-extraction from the bolometer. This type of interconnection will be useful for future detailed studies relating the angular antenna pattern to the spatial response of the antenna-coupled sensor.

ISBN: 9780542868566Subjects--Topical Terms:

626636
Engineering, Electronics and Electrical.

Transmission lines for IR signal routing.
LDR:03095nam 2200277 a 45 001 965309
005 20110906
008 110906s2006 eng d
020 $a 9780542868566
035 $a (UnM)AAI3233662
035 $a AAI3233662
040 $a UnM $c UnM
100 1 $a Mandviwala, Tasneem. $3 1288084
245 1 0 $a Transmission lines for IR signal routing.
300 $a 123 p.
500 $a Advisers: Glenn D. Boreman; Brian A. Lail.
500 $a Source: Dissertation Abstracts International, Volume: 67-09, Section: B, page: 5290.
502 $a Thesis (Ph.D.)--University of Central Florida, 2006.
520 $a In this dissertation, the design, fabrication, and characterization of coplanar striplines, vias, and microstrip lines is investigated, from the point of view of developing interconnections for antenna-coupled infrared detectors operating in the 8- to 12-micron wavelength range. To our knowledge, no previous efforts have been made to study the performance of metallic-wire transmission lines at infrared frequencies. Both the design and fabrication of these structures present unique challenges. Because of attenuation and dispersion issues, the analytical formulas for transmission-line parameters that are valid below a few hundred GHz are not applicable in the infrared. Therefore, numerical modeling was performed to characterize the coplanar striplines and microstrip structures in terms of transmission-line parameters: characteristic impedance, attenuation constant and effective index of refraction. These parameters were extracted by fitting the computed impedance as a function of transmission-line length to the usual impedance transformation equation. The material properties used in the model are realistic, having been measured at the frequencies of interest by infrared ellipsometric techniques. The transmission-line parameters cannot be measured directly in the infrared, so experimental validation was carried out by measuring the response of a bolometer, which was connected to a dipole antenna by different lengths of both the coplanar and microstrip transmission lines. The modeled and measured responses for both types of transmission lines was in good agreement. A third type of signal-routing structure was also investigated, that of the vertical via, essentially a low-frequency connection that facilitates location of the bondpads away from the plane of the antenna. In the configuration studied, the vias pass vertically down through the SiO 2 isolation layer and a groundplane, which provides electromagnetic isolation between the antenna and the structures that allow for signal-extraction from the bolometer. This type of interconnection will be useful for future detailed studies relating the angular antenna pattern to the spatial response of the antenna-coupled sensor.
590 $a School code: 0705.
650 4 $a Engineering, Electronics and Electrical. $3 626636
690 $a 0544
710 2 0 $a University of Central Florida. $3 1018467
773 0 $t Dissertation Abstracts International $g 67-09B.
790 $a 0705
790 1 0 $a Boreman, Glenn D., $e advisor
790 1 0 $a Lail, Brian A., $e advisor
791 $a Ph.D.
792 $a 2006
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3233662