搜索结果: 1-15 共查到“电子科学与技术 antenna”相关记录15条 . 查询时间(0.042 秒)
A New Class of Improved Bandwidth Planar Ultrawideband Modular Antenna (PUMA) Arrays Scalable to mm-Waves
Antenna arrays mm-wave array Dipole Planar arrays Ultrawideband
2014/12/8
A new class of Planar Ultrawideband Modular Antenna (PUMA) arrays, termed PUMAv3, is introduced to offer improved performance and further meet demand needs for multifunctional systems. PUMAv3 extends ...
Spaced-Antenna Wind Estimation Using an X-Baand Phased-Array Weather Radar
Pure sciences Earth sciences Wind estimation Phased-array Weather radar Signal processing
2014/11/7
Over the past few decades, several single radar methods have been developed to probe the kinematic structure of storms. All these methods trade angular-resolution to retrieve the wind-field. To date, ...
Target detection for CDMA based passive radar using array antenna
passive bistatic radar code division multiple access (CDMA) array antenna target detection
2012/3/22
Within a system of code division multiple access (CDMA), in an area there exist multiple base stations which transmit different signals in the same frequency bandwidth. And usually it is difficult to ...
Design and ground plane optimization of a CPW-fed ultra-wideband antenna
Printed antennas UWB CPW
2011/3/22
In this paper, an ultra-wideband antenna based on an egg-shaped conductor and a co-planar waveguide (CPW) feed is presented. The ground plane incorporates an egg-shaped slot with parametrized center a...
Parallel Distributed Computational Microcontroller System for Adaptive Antenna Downlink Transmitter Power Optimization
Microcontroller Genetic Algorithm Adaptive antenna Power optimization
2010/2/2
This paper presents tested research concept that
implements a complex evolutionary algorithm, genetic algorithm
(GA), in a multi-microcontroller environment. Parallel Distributed
Genetic Algorithm ...
Dual-Band Split-Ring Antenna Design for WLAN Applications
Split-ring microstrip antenna dual-band
2009/7/28
A dual-band microstrip antenna based on split-ring elements is introduced for WLAN (2.4/5.2 GHz) applications. The proposed split-ring antenna (SRA) has a compact novel design which provides about 2% ...
Analysis and Optimization of Mobile Phone Antenna Radiation Performance in the Presence of Head and Hand Phantoms
Numerical simulation hand phantom antenna design
2009/7/28
A commercial clam shell phone CAD model is used to numerically investigate the effect of a hand phantom on mobile phone antenna radiation performance. The simulation results show that the grip of the ...
Development of a Cylindrical Waveguide Antenna Array with a High Isolation Between Receive - Transmit Sub arrays: Theory and Experiment
cylindrical waveguide aperture antenna Galerkin method
2009/7/28
The possibility of developing an antenna system consisting of transmit and receive arrays and being able to work simultaneously in full duplex mode at the same frequency is a very attractive task. Thi...
A Simple Formula Obtained Using Tabu Search Algorithm for the Radiation Efficiency of a Resonant Rectangular Microstrip Antenna
Microstrip antenna rectangular radiation efficiency
2009/7/27
A new simple formula for the radiation efficiency of a resonant rectangular microstrip patch antenna is presented. The formula is obtained by using a tabu search algorithm, which is a quite new optimi...
Bipolar Disk Microstrip Antenna. Theoretical and Experimental Considerations
antenna microstrip radiation
2010/1/11
The paper presents the main theoretical and practical aspects regarding
wideband disk microstrip antenna construction. There are presented electromagnetically
parameters of the antenna, their shape,...
Asymptotic Approach for Rectangular Microstrip Patch antenna With Magnetic Anisotropy and Chiral Substrate
Microstrip antenna bianisotropic media resonant frequency
2010/2/2
The effect of a chiral bianisotropic substrate on the
complex resonant frequency of a rectangular microstrip resonator has
been studied on the basis of the integral equation formulation. The
analys...
A Compact Wideband Stacked Antenna for the Tri-Band GPS Applications
A Compact Wideband Stacked Antenna the Tri-Band GPS Applications
2010/12/6
A compact wideband stacked patch antenna is presented for the applications of GPS systems. This antenna covers the L1, L2, and L5 GPS bands of operating frequencies 1.575, 1.227, and 1.176 GHz, ...
High Efficiency and Broadband Microstrip Leaky-Wave Antenna
tapered design leaky-wave antenna an FDTD code
2010/12/6
A novel layout of leaky-wave antennas based on tapered design has been proposed and investigated. The new tapered leaky-wave antenna (LWA) was designed running a simple procedure which uses an FDTD co...
Printed Antenna Arrays with High Side Lobe Suppression
Printed Antenna Arrays High Side Lobe Suppression
2010/12/6
The problem of side lobe suppression (SLS) in printed antenna arrays has been investigated in the paper. Influence of several factors that make difficult design and realization of antenna arrays with ...
An Experimental Study of Curved Rectangular Microstrip Antenna in Simulated Plasma Medium
Curved Rectangular Microstrip Antenna Plasma Medium
2010/12/13
The effect of plasma on the radiation characteristics of curved rectangular microstrip antenna is studied by means of a new plasma simulation technique. Unlike previous techniques [1,2], a relative in...