a utensil with a conical ridged center that is used for squeezing juice from citrus fruit.
There are all kinds of antennas used in EMC test such as biconical antennas, log periodic antenna, helical antenna, ridged horn antenna and etc.
We don't like the rim. The rim should be ridged.
At last, the radiated field of axial-mode helical antenna and double ridged horn antenna is analyzed at this paper.
This paper describes the application of finite element method for obtaining the cutoff wavelength, field pattern and bandwidth in ridged waveguide of ridge on the short side, gives the specific equation of related parameter to the subject.
Since the double-ridged horn antenna owns many seductive characteristics, such as ultra broadband, relatively small size, high calibre efficient and gain etc.
If low lands must be used for the bean crop, they should be ridged.
Surfaces may be fairly smooth or irregular, hummocky or ridged.
As an important form of broadband antenna, the ridged horn antenna has been widely used in EMC measurements.
deeply ridged yellow-brown tropical fruit; used raw as a vegetable or in salad or when fully ripe as a dessert.
Any of several wild goats of the genus Capra, especially C. ibex, native to mountainous regions of Eurasia and northern Africa and having long, ridged, backward-curving horns.
