与 «BEAM ANTENNA»相关的英语书籍
在以下的参考文献中发现
beam antenna的用法。与
beam antenna相关的书籍以及同一来源的简短摘要提供其在 英语文献中的使用情境。
1
Microwave
Antenna Theory and Design
In connection with the technique of using radar echoes for obtaining range
information, the pencil-beam antenna serves to define the position of a target
completely. There are several possible techniques for producing pencil beams.
2
The Handbook of
Antenna Design
In this Chapter, the fundamental characteristics of the multiple beam antenna (
MBA) are presented, with some of the associated physical limitations governing
the synthesis of the desired radiation patterns. Since these antennas have a wide
...
3
Antenna Handbook: Volume III Applications
The demands of the frequency reuse and multiple-beam antenna systems have
taken the form of requirements for more antenna pattern control for increased
antenna gain, low side lobes. and cross polarizations. Low side lobes and cross
...
Y.T. Lo, S.W Lee, S. W. Lee, 1993
By using Eq. (1-19) and assuming equal beamwidths, we have U : HPBW2/41,
253, where U p is the portion of the integral due to the pencil beam and HPBW is
the beamwidth in degrees. Example Consider a pencil beam antenna with
pattern ...
5
An Introduction to Satellite Communications
7.5.5 INTELSAT IV and spot-beam antennas Although virtually all the RF power
transmitted by an INTELSAT III satellite was directed towards the earth by the
global-beam antenna the resultant power flux density at the surface of the earth
was ...
6
Mobile
Antenna Systems Handbook
More than one signal path is typically used to generate each specific beam. A
steered-beam antenna may need to be characterized with respect to its scattering
parameters including mutual coupling, as well as radiation pattern performance,
...
This new edition, a must for the serious DXer, presents complete information on beam design, construction, and operation, and describes tests to detect if a beam is working properly.
8
Communication Satellites
"DSCS III Receive Multiple Beam Antenna Performance Improvement." IEEE
National Telesvstems Conference (March 1991). Lowe, E., M. Josephs, and J.
Hedgepeth. "Advanced Deployable Reflectors for Communication Satellites.
9
Personal Wireless Communications: IFIP-TC6 8th International ...
In this work also, we are using smart ESPAR antenna as a switched beam
antenna. ESPAR antenna can also be used as a generalized switched beam
antenna or quasi-switched beam antenna, by selecting the value of reactance for
one ...
The Yagi beam antenna (more correctly, the Yagi–Uda antenna, after both of the
designers of Tohoku University in Japan 1926) is unidirectional. It can be
vertically polarized or horizontally polarized with little difference in performance (
other ...
Joseph Carr, Joe Carr, 2001
包含词语«BEAM ANTENNA»的新条目
找出国内和国际出版社所讨论的内容，以及词语
beam antenna在以下新条目的上下文中是如何使用的。
Butts County ham radio operators hold 24-hour test
First up was a hex beam antenna, which is multi-band, multi-directional and high-range. It gets its name from its hexagonal shape. The wires ... «jacksonprogress-argus, 六月 15»
Massive Pine Gap expansion
A Torus multi-beam antenna was installed at Pine Gap in 2008. Pine Gap is managed by the US National Reconnaissance Office and is the ... «The Guardian, 六月 15»
Pine Gap's new spy role revealed
A Torus multi-beam antenna was installed at Pine Gap in 2008. Few details of the actual targeting of foreign satellite communications have ... «Sydney Morning Herald, 五月 15»
Hope's Journey
As it travels, the probe will need to know where it is in space, and exactly where to point its narrow-beam antenna to communicate with Earth. «Gulf Today, 五月 15»
AT&T's new antennas help deliver twin 12-Terabyte weekends at …
The Ten-Ten-Antenna is able to offer a whopping 10x the capacity of a traditional, single-beam antenna – the most ever for an AT&T antenna or ... «Mobile Sports Report, 四月 15»
Tyco Retail Solutions' Steerable Beam Antenna Brings Movement …
Tyco Retail Solutions' Steerable Beam Antenna Brings Movement Data to Retailers. The company's new IDA-3100 antenna is intended to ... «RFID Journal, 四月 15»
AT&T sets record for data usage at SXSW
One of the main advantages it has is it can provide up to 10 times the capacity of a single beam antenna. That allows us to reuse our spectrum ... «RCR Wireless News, 三月 15»
Antenna technologies are crucial to increasing LTE capacity
These two beams are radiated from a single BSA and are pointed +/- 30° from boresite so the twin beam antenna can simply take the place of ... «TelecomsTech, 三月 15»
TechFlash: 5 things you need to know for this week
Super COW will provided SXSW attendees with 10 times the capacity of a traditional single-beam antenna. AT&T has also deployed two cows ... «Dallas Business Journal, 三月 15»
#SxSW: AT&T ups capacity with super COW
... times the capacity of the more common single-beam antenna, to keep those attending Austin's annual South by Southwest event connected. «RCR Wireless News, 三月 15»
