30-60 MHz FWCD system on DIII-D: power division, phase control and tuning for a four-event antenna array

2002 ◽  
Author(s):  
R.I. Pinsker ◽  
M.J. Mayberry ◽  
C.C. Petty ◽  
W.P. Cary ◽  
J. Pusl ◽  
...  
Keyword(s):  
Antenna Array ◽  
Phase Control

scholarly journals Rotated infrared antenna transmitarray for the manipulation of circularly polarized wavefronts

2014 ◽  
Vol 1 ◽  
pp. 8 ◽  
Author(s):  
Yuchu He ◽  
George V. Eleftheriades
Keyword(s):  
Antenna Array ◽  
Polarized Light ◽  
Phase Control ◽  
Photonic Devices ◽  
Unit Cell ◽  
Fabrication Technology ◽  
Circularly Polarized Light ◽  
Circularly Polarized ◽  
Local Rotation ◽  
Infrared Frequencies

An IR optical transmitarray is presented based on Antenna Array Sheet (AAS) for the manipulation of circularly polarized light. The unit cell of the transmitarray comprises three layers of metallic elliptical patches. Complete phase control is achieved through the local rotation of each unit cell. Thin refraction and focusing transmitarrays of this sort are demonstrated at infrared frequencies. Moreover, a new concept for realizing a polarization-discriminating device is introduced based on a flat refracting lens. These devices are compatible with current fabrication technology and can become crucial for the integration with other IR and nano-photonic devices.

scholarly journals Spectral shaping and phase control of a fast-wave current drive antenna array

1989 ◽  
Author(s):  
F. W. Baity ◽  
W. L. Gardner ◽  
R. H . Goulding ◽  
D. J. Hoffman ◽  
P. M. Ryan
Keyword(s):  
Antenna Array ◽  
Phase Control ◽  
Current Drive ◽  
Fast Wave ◽  
Spectral Shaping

Design of the Weighted Series Feeding Microstrip Antenna Array

2014 ◽  
Vol 1078 ◽  
pp. 317-320
Author(s):  
Shuang Zhao ◽  
Yun Qing Liu
Keyword(s):  
Antenna Array ◽  
Microstrip Antenna ◽  
Phase Control ◽  
Array Antenna ◽  
Electrical Networks ◽  
Space Utilization ◽  
Microstrip Patch ◽  
Microstrip Antenna Array ◽  
Stable Performance ◽  
High Level

The design of the amplitude spaced antenna array is relatively simple, but it has a relatively large drawback that its sidelobe is at a relatively high level. In this paper, we use a series network to feed the radiating elements of the array antenna to achieve the amplitude and phase control. Comparing with the ordinary feeding array, it effectively reduces the loss of electrical networks and improves the space utilization of the antenna. A planar microstrip patch array antenna using the series feeding and resonating at 35.75GHz is designed. The simulation result shows that this antenna array has a gain of 22dB, small sidelopes and stable performance.

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