Quantcast GROUND-PLANE ANTENNA

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Custom Search
 
  
 
4-46 Figure 4-40.—Stacked turnstile antennas. GROUND-PLANE ANTENNA A vertical quarter-wave antenna several wavelengths above ground produces a high angle of radiation that is very undesirable at vhf and uhf frequencies. The most common means of producing a low angle of radiation from such an antenna is to work the radiator against a simulated ground called a GROUND PLANE. A simulated ground may be made from a large metal sheet or several wires or rods radiating from the base of the radiator. An antenna so constructed is known as a GROUND-PLANE ANTENNA. Two ground-plane antennas are shown in figure 4-41, views A and B. Figure 4-41.—Ground-plane antennas. CORNER REFLECTOR When a unidirectional radiation pattern is desired, it can be obtained by the use of a corner reflector with a half-wave dipole. A CORNER-REFLECTOR ANTENNA is a half-wave radiator with a reflector. The reflector consists of two flat metal surfaces meeting at an angle immediately behind the radiator. In other words, the radiator is set in the plane of a line bisecting the corner angle formed by the reflector


Electrical News
Lemoptix Pico-Projector Excels
Lemoptix is licensing its pico-projector technology to companies like Hamamatsu...
eetimes.com
The Importance of Design in Solving Real Problems
Product design is more important now than ever, thanks to...
eetimes.com
Technology That Knows Who You Are: The Nymi Wristband
The Nymi is a wristband that uses your cardiac rhythm...
eetimes.com
Orbis & Dr. Duino: A Tale of Maker Happiness
While creating an Arduino-based art project, Guido Bonelli realized there...
eetimes.com
ATPG: It's What's Inside the Simulation That Counts
Cell-aware testing can improve test coverage in simulations, but there...
eetimes.com
Android One Rides Mediatek
Taiwan's leading mobile chip vendor will power Google's Android One-branded,...
eetimes.com
Micron SSD Allows MLC to Mimic SLC
New 128nm lithography enables Micron to offer dynamic write acceleration,...
eetimes.com
7nm EUV Could Ease 10nm Squeeze
After a cost-squeezed 10 nm node using only immersion steppers,...
eetimes.com
HGST Fires Up Flash Fabric
The Western Digital-owned enterprise storage company is leveraging recently acquisitions...
eetimes.com
Open-Silicon Speeds ASIC/SoC Development for 100G Networks
Open-Silicon has just announced a complete 28Gbps SerDes evaluation platform...
eetimes.com
7 Most Audacious Medtech Predictions
Making the blind see and the crippled walk sounds like...
eetimes.com
ZF Swallows TRW Automotive
US-based TRW Automotive has been acquired by automotive parts company...
eetimes.com
EEVblog #663 – Compucorp 322G Calculator Teardown
Teardown Tuesday Inside a 1973 vintage programmable scientific desktop calculator....
eevblog.com
Cavium Attacks B'com in Switches
Cavium aims to leapfrog networking giant Broadcom with new Ethernet...
eetimes.com
NHTSA's on the Spot - Finally
Why is the National Highway Traffic Safety Administration such a...
eetimes.com
Apple, Samsung in 20nm Race
Apple and Samsung are poised to ship their first smartphones...
eetimes.com
Oh, No! My Antique Analog Meter Has Twitched Its Last
One of Max's treasured analog meters has shrugged off this...
eetimes.com
Blame It on Dilbert
Dilbert continues to be a great source of comic relief,...
eetimes.com
Phoneless Billions Lure Google to India
Google's rollout of Android One-branded smartphone in India has suddenly...
eetimes.com
RadioShack:The End Is Nigh!
Perhaps this is the natural order of business -- Darwinism...
eetimes.com
 


Privacy Statement - Copyright Information. - Contact Us

comments powered by Disqus

Integrated Publishing, Inc.
9438 US Hwy 19N #311 Port Richey, FL 34668

Phone For Parts Inquiries: (727) 755-3260
Google +