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39 Result(s)
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English
Engineering
Circuits and Systems
Microwaves, RF and Optical Engineering
**n GENG
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Book
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Chapter
Basic Theory of Omnidirectional Antenna and Slot Array
Microwave transmission line (TL) is a general term for various forms of transmission system used to transmit microwave information and energy. Its function is to guide electromagnetic wave to transmit in a cer...
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Chapter
Principles of Omnidirectional Dual-CP Slot Array Antenna
In wireless communication, there will be any polarization electromagnetic waves, including the intentionally loaded wave or depolarized wave by the environment, in which the antenna with dual circular polariza...
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Chapter
A Circular Truncated Cone Slot Antenna with Circular Polarized Conical Beam
Recently, the researchers pay more attention to antenna systems that radiate a conical beam with circular polarization (CP) character.
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Chapter
A Compact Reconfigurable Coaxial Slot Antenna
Reconfigurable antenna, due to their ability to obtain directive radiation pattern have been widely used in wireless communication system. There are various methods for beam-scanning antenna in the literature [1–
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Chapter
Half-Space Covered Antenna for Air-Ground Communication
In recent years, people have become more and more interested in the field of air-ground communications, such as communication between ground command stations and drones. Under normal circumstances, air-ground ...
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Chapter
Introduction
The antenna is the key component of the communication, radar, navigation, radio, television and other radio system. The antenna is just like the ears and eyes of the whole communication system, which is the in...
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Chapter
Principles of Omnidirectional CP Slot Array Antenna
Omnidirectional circularly polarized (CP) antenna (OCPA) is the key to realize 360° full coverage with being insensitive to the orientations of the incident waves in modern wireless communication, and it can a...
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Chapter
Dual CP Polarization Diversity and Space Diversity Antennas Enabled by a Compact T-Shaped Feed Structure
With the rapid growth of the demand for wireless transmission rate and capacity, wireless communication systems are developed quickly, and the antenna is not only to transmit or receive signal, but also increa...
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Chapter
The Omnidirectional/Directional Switchable Antenna Based on the Curved Microstrip Antenna with Defected Ground Structure
With the quickly develo** of wireless transmission, the miniaturized terminal with multi-function working in multi-frequency bands has attracted more and more users. However, with the digital circuit being p...
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Chapter
Introduction
The antenna is the key component of the communication, radar, navigation, radio, television, and other radio system.
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Chapter
Multi Frequency Antenna Design Based on Binary Coding
Generally speaking, the traditional antenna design mainly depends on the design experience of antenna engineers, especially the initial selection of antenna is often closely related to the knowledge, experienc...
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Chapter
Basic Principles of Spoof Surface Plasmon Polaritons
Surface plasmon polaritons (SPPs) is a kind of surface electromagnetic wave mode formed by the interaction of metal surface charge and electromagnetic wave in the medium. This effect is mainly in the optical f...
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Chapter
Design Wideband Directional Antenna with Low Profile by Binary Coding Optimization Method
Equidistant helical antenna is a kind of broadband circularly polarized antenna, but it radiates bidirectional pattern.
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Chapter
Endfire Antenna Based on Spoof Surface Plasmon Polaritons
Due to the strong binding effect of artificial surface plasmons on electromagnetic field, the early artificial surface plasmons were mainly used in the design of transmission lines. Because the phase of artifi...
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Chapter
Design UWB Antenna by Binary Coding Optimization Method
Inspired by the development and evolution of nature, many natural laws can also be used to solve antenna design problems, such as artificial neural network technology, genetic algorithm, simulated annealing al...
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Chapter
Antenna Design Based on Optimization of Linear Motion Trajectory
A novel method to design patch antenna with computer-aid is presented in this chapter.
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Chapter
Pattern Reconfigurable Antenna Based on Spoof Surface Plasmon Polaritons
Compared with the traditional antenna, the reconfigurable antenna is easy to achieve diversity, can greatly expand the working range and capacity of the antenna, and is small in size, easy to integrate with th...
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Chapter
Introduction
Surface plasmon polaritons (SPPs) mainly exists in the frequency band above the far infrared. They are highly localized electron density waves propagating along the metal surface formed by the interaction of e...
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Chapter
Design Low Profile RFID Tag Antenna on Metal with Binary Coding Optimization Method
Radio-frequency identification (RFID) technology has become an indispensable technology in social life. In people’s daily life, traveling, dining, shop** and so on need RFID technology for identification, ev...
