摘要：
A novel monopole patch antenna with very simple structure to fabricate on a printed circuit board is proposed to operate from 3.05 to 11.8GHz for UWB application. Ellipse technique is used to optimize its main parameters when an improvement of its compact profile is achieved. The designed antenna has miniature total volume of 18.6mm×18mm×1mm, and quasi-omnidirectional pattern in the X-Y plane across the major bandwidth.
会议论文集名称：
International Conference on Wireless Communications Networking and Mobile Computing-WiCOM
关键词：
Right-hand circularly polarized (RHCP);patch antenna;surface wave;Dedicated Short Range Communication (DSRC);Electronic Toll Collection (ETC) system
摘要：
This paper focuses on that the surface wave on antennas has great effects on its performance in Dedicated Short Range Communication (DSRC) system. A slot coupled right-hand circularly polarized (RHCP) patch antenna operated at 5.8GHz is presented, on which the coupling slots optimized to not only remarkably reduce the surface wave but also reduce the radiation on back. The simulated and measured return losses show that the proposed antenna has the bandwidth of about 2GHz.
摘要：
A systematic method to test human skin based on the high performance microconverter ADuC841 is presented in this paper. The system includes the design of the sensors with the function of skin information collection, the realization of liquid crystal display (LCD) and the function of print. This paper focuses on the hardware circuit design, it also introduces the relevant software design. Because of its characteristic of low cost, flexible function and conveniently to carry, it has the widespread application prospect.
摘要：
A novel printed monopole antenna with two ellipses is proposed to operate from 3 to 11.5 GHz, which is fed by a microstrip line. The antenna is very small in size with dimension of 20 by 24 mm and has an approximate omnidirectional pattern across the major bandwidth. This antenna can be especially applied as the element of ultrawide-band(UWB) antenna arrays for UWB application.
作者机构：
[Xia, Yingqing; Wang, Lin] Huazhong Normal Univ, Coll Phys Sci & Technol, Wuhan 430070, Hubei, Peoples R China.;[Xia, Yingqing] Huazhong Normal Univ, Coll Phys Sci & Technol, 152 Luoyu Rd, Wuhan 430070, Hubei, Peoples R China.
通讯机构：
[Xia, Yingqing] H;Huazhong Normal Univ, Coll Phys Sci & Technol, 152 Luoyu Rd, Wuhan 430070, Hubei, Peoples R China.
会议名称：
The 4th International Conference on Wireless Communications, Networking and Mobile Computing(第四届IEEE无线通信、网络技术及移动计算国际会议)
会议时间：
2008-10-12
会议地点：
大连
会议论文集名称：
The 4th International Conference on Wireless Communications, Networking and Mobile Computing(第四届IEEE无线通信、网络技术及移动计算国际会议)论文集
关键词：
resonance frequency;split ring resonator (SRR);ultra-wideband;bowtie antenna;wireless sensor
摘要：
Magnetic resonance frequency (omega(m)) of a split ring resonator (SRR) structures loaded with capacitors at inner ring's split region is investigated both experimentally and numerically. By constructing a wireless sensor connected ultra-wideband bowtie antenna to a single SRR, the electromagnetic energy in outer gap can be effectively radiated. Its omega(m) is changed by the loaded capacitance as a sensor and can be measured at the nearby point away from SRR.
摘要：
A method of analyzing and calculating the angular glint of complex targets is presented. By dividing the target into very small size cells, and using high-frequency approximation, the Radar Cross Section (RCS) is calculated based on the SCTE prediction system [1]. The angular glint is then calculated by the phase gradient. The results show that the angular glint can be calculated exactly and efficiently in the SCTE system.
作者机构：
[Yingqing Xia; Huamei Tian; Zhiguo Duan; Ling Wu] College of Physical Science and Technology, Huazhong Normal University, Wuhan, China;[Penggen Xu] School of Electronic Information, Wuhan University, Wuhan, China
通讯机构：
College of Physical Science and Technology, Huazhong Normal University, China
关键词：
RCS;angular glint;near-zone
摘要：
This paper presents a method to analyze and calculate the angular glint of targets. By parting the target to very small size cells, using high-frequency approximation, the near-field radar cross section (RCS) is calculated based on the scattering from complex targets and environments (SCTE) system, and the angular glint is calculated by the phase grads. The results show that the angular glint can be calculated exactly in the SCTE system, and this method is correct and efficient. In the near-zone, the far-field theory is not applicable and the angular glint should be calculated by the near-field theory.
摘要：
For a UWB pyramidal horn antenna with a curved ridge and a fin, the effect of the resistors at the end of the fin on reflection coefficient or return loss is investigated. The results from both simulation and experiment show that it is a very important factor on its performance that these termination resistors well match the impedance at the antenna's end.
摘要：
本文建立了考虑Pier son Moskowi tz谱分布的动态分形海面与目标的电磁散射模型.当目标的几何外形用面元和棱边模拟时,物理光学和物理绕射理论分别给出了面元和棱边的初级散射场,几何光学确定了初级散射场在海面的受照面积,受照面的物理光学积分给出了面元与海面间的复合散射.数值结果显示了目标与海面间的电磁波复合散射雷达截面的特性.
摘要：
This paper presents a theory method to calculate and analyze the scattering near field from some simple and complex targets, using high-frequency approximation. By calculating the near-field RCS of some simple and complex targets based on the SCTE (Scattering from Complex Targets and Environments) system ([1]), the results show that there are much difference between the near field and the far field. And the characteristics of the near field are more complicated. This method:has practical engineering value in the area of the electromagnetic interference (EMI) prediction and electromagnetic scattering (EMS) et al.
