Beam shaping using multiple linear arrays of microstrip slot antennas

1997 ◽  
Author(s):  
Leili Shafai ◽  
L. Shafai ◽  
M. Barakat ◽  
A. Sebak
Keyword(s):  
Beam Shaping ◽  
Slot Antennas ◽  
Linear Arrays ◽  
Microstrip Slot Antennas

Resonator-Loaded Multi-Band Microstrip Slot Antennas With Bidirectional Radiation Patterns

2019 ◽  
Vol 67 (10) ◽  
pp. 6661-6666 ◽  
Author(s):  
Jian-Feng Qian ◽  
Fu-Chang Chen ◽  
Kai-Ran Xiang ◽  
Qing-Xin Chu
Keyword(s):  
Radiation Patterns ◽  
Slot Antennas ◽  
Microstrip Slot Antennas ◽  
Multi Band

Input impedance of microstrip slot antennas

1986 ◽  
Vol 60 (4) ◽  
pp. 517-526
Author(s):  
M. KISLIUK ◽  
Y. TWAIG ◽  
A. AXELROD ◽  
D. LIPMAN
Keyword(s):  
Input Impedance ◽  
Slot Antennas ◽  
Microstrip Slot Antennas

Untilted edge slot antennas excited by T-shaped wires

2021 ◽  
pp. 1-12
Author(s):  
Mahdi Moradian
Keyword(s):  
Dynamic Range ◽  
The Other ◽  
Slot Antenna ◽  
Slot Antennas ◽  
Linear Arrays ◽  
Narrow Wall ◽  
The Third ◽  
Radiated Power ◽  
Measurement Results ◽  
Tuning Process

Abstract An effective method is proposed to excite the untilted edge slot antennas. In the proposed method, two T-shaped wires are placed at both sides of each untilted slot. Two legs of each T-shaped wire are connected to the waveguide walls, while the third leg is open. One of the T-shaped wires connects the upper broad wall of the waveguide to the narrow wall of the waveguide which contains the slots. Similarly, the other T-shaped wires connect the lower broad wall of the waveguide to the narrow wall of the waveguide that contains the slots. The phase reversal between the adjacent slots can be accomplished by changing the orientation of the T-shaped wires. It is shown that the arm lengths of the connected wires can be employed as a parameter to control the radiated power by the slots. Furthermore, the arm lengths of the open wires can be selected properly to control the dynamic range of the equivalent normalized susceptance associated with each untilted slot antenna. To validate the effectiveness of the proposed antennas, two linear arrays consisting of 11 slots have been designed, implemented, and tested. The simulation and the measurement results of the designed arrays show that for the proposed untilted edge slot antennas, the dynamic range of the equivalent normalized susceptance is improved significantly which leads to a straightforward design process with no requirement to resort to any time-consuming tuning process.

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