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1
Microwave
Antenna Theory and Design
CHAPTER 12 PENCIL-BEAM AND SIMPLE FANNED-BEAM ANTENNAS BY S.
SILVER PENCIL-BEAM ANTENNAS 12-1. Pencil-beam Requirements and
Techniques. — The term "pencil beam" is applied to a highly directive antenna
pattern ...
2
Wireless Communications
The desired azimuthal antenna pattern is either (i) omnidirectional—i.e., uniform
in [0, 2π)—or (ii) uniform within a sector, and zero outside. The angular range of a
sector is usually 60° or 120°. For omnidirectional antennas, which are mostly ...
3
Publications of the National Bureau of Standards ... catalog
Antenna gain; Antenna pattern; Calculated far-field patterns; Near-field
measurements; New antenna theorems; / 1856. Antenna gain measurement;
Antenna measurements; Antenna pattern; Antenna pattern measurement; Near-
field antenna ...
United States. National Bureau of Standards,
1972
4
Catalog of National Bureau of Standards publications, 1966-1976
Antenna gain; Antenna pattern; Calculated far-field patterns; Near-field
measurements; New antenna theorems; 11856. SP305-3. Antenna gain; Antenna
polarization; Extrapolation technique; 3-antenna technique; /5627. SP305-5.
Antenna ...
United States. National Bureau of Standards. Technical Information and Publications Division, Betty L. Burris, Rebecca J. Morehouse,
1978
5
Radar Principles for the NonSpecialist, 3rd Edition
By computing the ratio of an integration from 0 to π (the first null) and from 0 to ∞,
we can find just under 90% of the antenna gain is contained within the null-to-null
beamwidth. We have already noted that the nulls in the antenna pattern are at ...
John Toomay, Paul J. Hannen,
2004
6
Antenna and Wave Propagation
Radiation or antenna pattern describes the relative strength of the radiated field
at various orientations from the antenna at a constant distance. The radiation
pattern is a 'reception pattern' as well, since it also describes the receiving
properties ...
7
Antenna Arrays: A Computational Approach
The far-field antenna pattern for this array is AP(6) : wlel"Z1 °°s° sin 6 + w2ejkZ2°
°s9 sin 0 + w3elkz3°°se sin 0 + --- + wNejkmwse sin 6 (4.2) Since the element
pattern is common to all the terms, it can be factored out to get N AP = sin 62 ...
8
Microwave and Millimeter-wave Remote Sensing for Security ...
4.2.2 Antenna Pattern The antenna pattern, or the radiation intensity, is the
radiated power per unit solid angle (W-str_1), and is given by 11/32 327:2 Note
that because the definitions of the electric fields include the Green's func— tion,
they ...
9
Adaptive
Antenna Arrays: Trends and Applications
... lies within the 3dB beamwidth of the antenna pattern; 2) the beam pattern
moves to create L independent fades within each symbol duration Ts; this
Geometric-Based Statistical Channel Modeling for Beam-Pattern-Scanning
Antenna Arrays.
10
The Code of Federal Regulations of the United States of America
such that 0° corresponds to the direction of maximum radiation or alternatively, in
the case of an asymmetrical antenna pattern, the plot must be oriented such that
0° corresponds to the actual azimuth with respect to true North. The horizontal ...
WIADOMOŚCI, KTÓRE ZAWIERAJĄ SŁOWO «ANTENNA PATTERN»
Sprawdź, o czym dyskutuje się w prasie krajowej i zagranicznej oraz jak jest stosowane słowo
antenna pattern w wiadomościach.
NASA Wallops' birthday bash out of this world
The chamber, officially dubbed the Dual-Mode Far-Field/Compact Range Antenna Pattern Measurement Facility, is where NASA employees ... «Delmarva Daily Times, Cze 15»
FCC issues order addressing petitions for reconsideration of …
In response to a petition filed by the Expanding Opportunities for Broadcasters Coalition, the FCC also revised TVStudy vertical antenna pattern ... «Lexology, Cze 15»
When Is a Non-Directional FM Antenna Directional?
... its FM antenna along with parasitics to produce a highly directionalized “non-directional” antenna pattern in order to maximize its signal into a ... «Radio World, Cze 15»
Up There in the Sky! It's a Bird! It's a Plane
Another potential application is using drones for airborne antenna pattern measurement, said one consultant, although the requirement to keep ... «Radio World, Cze 15»
Lenovo's 6.8 inch phablet leaked in TENAA certification
... device and the antenna pattern on the bottom of the rear panel. The device also sport a similar thickness, according to the leaked information, ... «India Today, Cze 15»
DARPA Revamps Phoenix In-Orbit Servicing Program
... program robotic servicer would conduct are repairs, such as fixing a satellite component that failed to deploy or changing an antenna pattern. «Satellite Today, Cze 15»
Keysight releases new version of SystemVue 2015.01
3D EM antenna pattern import from EMPro and support for Keysight test instruments has also been enhanced. Keysight's SystemVue 2015.01 ... «Telecom Lead, Maj 15»
TheEC: Tower Climbing & RF Safety
It's this antenna pattern that lets tower climbers stay safe despite being only 20-30ft below an antenna pumping out 500 watts of power! Granted ... «Rhode Island Public Radio, Kwi 15»
Antenna Array and Receiver Testing with a Multi-RF Output GNSS …
Figure 9 shows the two-dimensional antenna pattern as a result of the beam-forming before and after switching on the interferer. The mitigation ... «GPS World magazine, Mar 15»
Ruckus Debuts Smart WiFi Technology for IP Calling
... frame loss, or packet retransmissions (increased latency) by dynamically adjusting the antenna pattern for each and every packet transmitted. «eWeek, Lut 15»