In 1994, due to my outstanding performance in high school, I was admitted to the Department of Electronic Science and Engineering of Nanjing University which is one of the top 3 universities in China. During my undergraduate study, I furnished myself with solid foundations of mathematics, physics, computer science and engineering science. I got the highest grades in my class in many major courses such as Foundations for Microwave Theory and Techniques, Computational Methods, C Programming Language etc. My overall GPA is 89.6% and ranks top 2 among 86 students in my class. As a result, I won a number of scholarships and honors (refer to my resume).

In 1998, I was admitted to the graduate program in our department, waived of the entrance examinations. Now majoring in Radio Physics, I focus my research work on microwave electronics, microwave/millimeter-wave application of superconductivity and solid-state materials and devices. Undoubtedly, this is a promising and exciting field and I would like to devote my future career to this field.

Abundant Experiences in Circuit Design, especially Microwave Circuits
To be an excellent scientist, I must not only be equipped with solid theory, but also be able to grasp outstanding experiment skills. Thanks to my high intelligence and hard work, I almost got an "A" in all my experimental courses. In my sophomore year, I was selected to be a RA in Applied Electronics Education Center and became one of the leaders in the Student Electronic Science Union. That semester, I was awarded "Outstanding Member" of this Union. In 1996, I enrolled in the Microwave Device Laboratory, where my creativity and laboratory capacity were highly promoted under the direction of Professor A. In contrast to the traditional network synthesize method, I initially wrote a CAD program using C language. Then with the aid of this program, I successfully designed an elliptic function filter using 3cm waveguide with excellent performance. I also fabricated a kind of little thin absorbing load using new materials. These achievements brought me the first prize in "5.20" student academic forum of Nanjing University in that year.

Expanded My Research Experience and Capacity in the SE-Lab
When I was enrolled into the graduate program in our Department (EL) in September 1998, I chose to join the famous Superconductor Electronics Laboratory (SE-Lab) without any hesitation. In the SE-Lab of Nanjing University there is an excellent research group work in SE-Lab included a novel type of Josephson Junction and its application in microwave & millimeter wave devices, HTS frequency mixer, Passive superconducting thin film circuits and RSFQ circuits etc. Led by Professor (name), one of the seven members of National Superconductor Experts Committee and IEEE &IEE fellow, SE-Lab has became an advanced laboratory in these fields in China. In SE-Lab, I continued to strengthen my background in microwave technology and got more experience in this field. On the other hand, I systematically studied the structure, attribution of superconductors and relevant techniques. Thus, I combined these fields and mainly focused my research on microwave applications of superconductivity.

Testing F4IC's and Superconducting Thin Film Circuits & Devices
One of my current research projects engages in the Microwave Near-Field Microscopy (MNFM) and its applications. This project is co-sponsored by the National Natural Science Foundation and Telecommunications Advancement Organization (TAO) of Japan. Under the direction of my advisor, Professor A, a young and prospective scientist, I have constructed a set of measure system using HP-8510C vector network analyzer controlled by a computer. A high Q coaxial (/4 resonator together with a niobium tip have been designed and involved as the scanning probe in this SMNFM system. By monitoring the resonant frequency fr and the quality factor Q of the resonator while the sample is scanned by an XY-translation stage, I have studied the local microwave properties of many solid-state materials and circuits such as metal thin films and MIC's, dielectric materials and superconducting thin films. Especially now, I am doing experiments to test the microwave tuning properties of ferroelectric or anfiferroelectric materials and thin films such as BST, PZT etc. I will further use these materials to fabricate microwave frequency tuning resonators and filters.

Using MNFM, we can easily get information about the surface resistance Rs distribution on samples such as metal thin films and superconducting thin films. I also did much work on the measurement of absolute Rs value of superconducting thin fdms. We used a high Q sapphire cylindrical resonator in our Rs measurement system and calibrated it using another sapphire cylinder and Ag thin film, thus we can compute the Rs of the superconducting thin films under test.

Specialize in Device Modeling and Computation
In order to promote the MNFM system's performance, I modeled the probe with several analytical methods and numerical methods such as FD, FEM and FDTD using C language and Matlab PDE toolbox. The results and the experimental data fit very well. According to the conclusions we obtained from numerical analysis, the spatial resolution of this system has been greatly improved to be several microns. During our experiments, we read the data from HP-8510C through IEEE488 bus cable. Corruption of this data occurs because of external tremor, crosstalk between the transmission lines and between coupling structures. So I introduced the Lorentzian fit method in my controlling program to accurately and precisely measure the resonant frequency fr and the quality factor Q of the resonator who observed the Josephson Effect shortly after the discovery of HTS in the world. Our probe. This has greatly promoted the sensitivity of our MNFM system. I am now trying to use phase vs. frequency fit method to promote the sensitivity further.

Design and Fabricate Superconductive Microwave Circuits/Devices
The low loss property of superconducting thin f'fims enables high frequency passive microwave structures/devices with high Q-values, such as resonators, filters, transmission lines or phase shifters. Cooperating with one of my peers, I have fabricated a YBCO CPW band-pass filter on MgO substrate and simulated it using the Sonnet EM and Pspice.

Planar patterning of high-Tc superconducting thin films is one of the important techniques for successfully fabricating the superconductive microwave devices and circuits. Although the standard photolithography and chemical etching have been used in patterning the high-Tc thin ffims, edge degradation often occurs due to acid solution and causes a negativeimpact on the performance of the high-Tc microwave devices. I also did many experiments to study the planar pattering of the YBCO thin film devices by laser irradiation and ion plasma treatment. The microstructure and superconductivity of modified YBCO thin films were obtained and the microwave properties were also studied using MNFM.

In addition, I participated in some other projects such as the novel type of Josephson Junction and its application in microwave & millimeter-wave band, YBCO thin ffim fabrication, HTS frequency mixers, RSFQ circuits etc. I have also published many papers together with my advisor and peers (refer to my publications).

Other Academic Activities
As a graduate student, I feel it necessary to be informed about the latest worldwide knowledge especially with that concerning my major. About two years ago, with Professor A's recommendation, I became a student member of IEEE MTT society. Through reading a lot of magazines and doing other academic activities such as participating in national symposiums and international conferences, I have broadened my horizon and promoted my major proficiency. As a result, I was awarded the "Excellent Graduate Student of Nanjing University" twice (1999 and 2000).

In Spring 2000, I was selected by Professor Peiheng Wu to give oral reports on my research work in English to Professor A from Hokkaido University (Japan) and Professor B from Tokyo Institute of Technology (Japan), who came to visit our lab. They were very interested in my work. This year, Mr. C (Iraq) came to our lab to be a post doctor. We often communicate technique problems with each other using English without any difficulty. From these practices, I believe that I will be a qualified Ph.D. student in your university in U.S.A.

I Hope to Pursue Advanced Study Abroad
With the development of electronics and computer techniques, working frequency band of electronic devices become higher and higher. So microwave and millimeter-wave technology represents one of the most active and fast developing branches of electrical science and engineering. In order to keep up with the enhancing pace of working frequency and to improve the high frequency performance of electronic circuits and devices, new low loss electronic materials must be researched. Many years of extensive study in electronic science & engineering and current research work have given me a solid basis in microwave theory and technology, solid state electronics and superconductive electronics and inspired me to undertake challenges in pursuing a doctorate degree in the above fields. Especially the microwave and millimeter-wave application of superconductivity that combines the above fields offers me the greatest challenge. V/hat I lack is more systematic study and more research experience.

My supervisors Professor A and Professor B introduced me to your famous department and suggested that I read your publications, and from the publications I learned about the research groups in the Department of Electrical Engineering. Their superior laboratories and facilities deeply impress me. Especially their achievements in microwave/millimeter-wave electronics, RF circuits and IC design and measurement make me realize that there are many respectable professors with distinguished wisdom and foresight in this department. So I am very eager and hope I can be a graduate student of a professor in UCLA and acquire his/her continuous guide in my path toward a Ph.D. I believe this kind of guidance is very crucial to my future academic career.

China, my motherland, an ancient country, which has a splendid national culture, is going to enter a new phase of development especially in electrical fields and information technology (IT). Thus for us responsible young Chinese, we have an obligation to grasp the opportunity to fulfill our historical responsibility. Having experienced both success and failure in my study and research work, I am confident in my capability of tackling research problems independently. Due to the limit in the experimental conditions and other constraints, I am quite eager to continue my study and gain more advanced knowledge at the University of California, Los Angeles. After my graduation, I will come back and continue my research work.