Browsing by Author "Chang, Kai"
Now showing items 1-20 of 60
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Lopez-Rivera, Marcos L. (2010-07-14)Recently, there is growing interest in high speed circuits for broadband communication, especially in wired networks. As the data rate increases beyond 1 GB/s conventional materials used as communication channels such as ...
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Hernandez Garduno, David (2009-05-15)This work presents design techniques for the implementation of high-speed analog integrated circuits for wireless and wireline communications systems. Limitations commonly found in high-speed switched-capacitor (SC) circuits ...
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Chen, Teng-Kai (2012-10-19)The Archimedean spiral antenna is well-known for its broadband characteristics with circular polarization and has been investigated for several decades. Since their development in the late 1950's, establishing an analytical ...
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Lu, Xiaolin (Texas A&M University. Libraries, 1993)The source laser's relative intensity noise (RIN) and intermodulation distortion (IMD) are two very important system design considerations in fiber optic communication systems, especially in subcarrier multiplexed (SCM) ...
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Hsieh, Lung-Hwa (Texas A&M University, 2004-09-30)Microstrip ring circuits have been extensively studied in the past three decades. A magnetic-wall model has been commonly used to analyze these circuits. Unlike the conventional magnetic-wall model, a simple transmission-line ...
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Huang, Sung-Ling (Texas A&M University, 2004-09-30)A new tuning scheme for linearly tunable high-Q filters is proposed. The tuning method is based on using the phase information for both frequency and Q factor tuning. There is no need to find out the relationship between ...
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Chen, Ruiyue (Texas A&M University, 2004-09-30)Beamfilling error is one of the main error sources for microwave oceanic rainfall retrieval. An accurate beamfilling correction can improve the rainfall retrieval accuracy significantly. Quantitative understanding of the ...
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Lu, Cho-Ying (2010-07-14)To provide more information mobility, many wireless communication systems such as WCDMA and EDGE in phone systems, bluetooth and WIMAX in communication networks have been recently developed. Recent efforts have been made ...
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Hummer, Kenneth Andrew (Texas A&M University. Libraries, 1994)Circular cylindrical cavity resonators have been studied in three configurations. First, a slot antenna backed by a circular cylindrical cavity was analyzed. The resonant frequency of the cavity is found using power ...
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Chang, Kai; Taylor, Henry F. (United States. Patent and Trademark Office; Texas A&M University. Libraries, 1991-06-04)An electromagnetic signal processor is disclosed comprising an input waveguide, an intermediate waveguide, and an output waveguide. The intermediate waveguide comprises two portions having substantially equal electromagnetic ...
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Farooqui, Muhammad Fahad (Texas A&M University, 2007-04-25)In this thesis two different research topics are undertaken, both in the area of compact RF/microwave circuits design. The first topic involves the design of a compact circularly polarized (CP) slot-ring antenna. A study ...
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Jung, Dong Jin (2012-07-16)This dissertation mainly discuses various microstrip bandpass filter (BPF) designs. The filter designs include: a coupled line BPF using nonuniform arbitrary image impedances, miniaturized BPF utilizing dumbbell shaped ...
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Eubanks, Travis Wayne (2011-08-08)This work describes the design and measurement of a compact bidirectional ultrawideband (UWB) modified equiangular spiral antenna with an integrated feed internally matched to a 50-Ohm microstrip transmission line. A UWB ...
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Li, Shuli (2015-05-11)Frequency selective surfaces (FSSs) are periodic structures which perform a spatial filtering operation, such as band-pass, band-stop, etc. in application of multiband reflector antennas, radomes, absorbers and so on. The ...
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Kim, Ryoung-Han (Texas A&M University, 2006-04-12)Bragg grating reflectors etched in amorphous silicon overlay films have been integrated with Ti:LiNbO3 optical waveguides. With a 12.5 mm long grating segment and an etch depth of ~ 93 nm in a 105 nm-thick silicon film, a ...
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Bhagawat, Pankaj (Texas A&M University, 2004-09-30)In this work we have made use of a geometric approach which quantifies robustness and performance and we finally combine them using a cost function. In particular, we calculate the robustness of the estimate of ...
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Valero Lopez, Ari Yakov (Texas A&M University, 2004-09-30)The rapid growth of the market for short-range wireless devices, with standards such as Bluetooth and Wireless LAN (IEEE 802.11) being the most important, has created a need for highly integrated transceivers that target ...
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Li, Yunchu (Texas A&M University, 2004-09-30)High-speed and low resolution analog-to-digital converters (ADC) are key elements in the read channel of optical and magnetic data storage systems. The required resolution is about 6-7 bits while the sampling rate and ...
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Kim, David G. (2010-10-12)Recent days, antennas play an important role in wireless communication system. Microstrip patch antennas are well known to have positive features for cost-effective, low profile and broadband. This type of antenna can be ...
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Song, Younghoon (2014-01-02)Total I/O bandwidth demand is growing in high-performance systems due to the emergence of many-core microprocessors and in mobile devices to support the next generation of multi-media features. High-speed serial I/O energy ...