ring antenna

ring antenna

A radio telescope consisting of many small elements arranged in a ring. For example, the RATAN 600 ring antenna is a multiplate reflector composed of reflecting panels that are adjusted to form part of a paraboloid surface with its axis directed at the source under observation. An advantage of the ring antenna over other shapes is that its side-lobe responses have no preferred direction and are small and widely distributed.
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References in periodicals archive ?
It is composed of choke a choke ring antenna, a FOIF A100 CORS receiver, and a GNSS Receiver.
"Design a multiband rectangular ring antenna using DGS for WLAN, WiMAX applications." International Journal of Advance Research in Computer & Communication Engineering, vol.
Contract awarded for This procurement is for four (4) GNSS CORS receivers and choke ring antennas that have reached end-of-life as well as purchase of one (1) GNSS CORS receivers and choke ring antenna for a new CORS site to be established near Winton.
Elsherbeni, "A dual band circularly polarized ring antenna based on composite right and left handed metamaterials," Progress In Electromagnetics Research, Vol.
(2005) A Compact and Low-Profile Metamaterial Ring Antenna with Vertical Polarization.
Set all, introduce a [lambda]-resonator ring antenna with a Composite right/left-handed CRLH metamaterial as which resonate with a dual frequency, [13].
For a circular ring antenna, the cavity model provides the general solution of the wave equation
A hybrid patch coupler is integrated inside the rectangular ring antenna to form the circular polarization.
The radiation pattern, [S.sub.21], [S.sub.11] and efficiency as a function of input power are shown in Figures 5, 6, 7 and 8, respectively ([S.sub.21] has been measured using an auxiliary test antenna that receives the radiated signal from the HEAP antenna and from a conventional short-circuited ring antenna).
I get ribbed by my friends for having such a finely-tuned spot-the-wedding ring antenna but it's just something I've developed over the years.
Tenders are invited for Trimble NetR9 Ti-2 reference station receiver with choke ring antenna.