Conceptual design of a dielectric hemispherical lens antenna with a congruent radiation pattern for beam steering applications

2013 ◽  
Author(s):  
C. Dahl ◽  
B. Will ◽  
C. Schulz ◽  
I. Rolfes ◽  
C. Baer ◽  
...  
Keyword(s):  
Radiation Pattern ◽  
Conceptual Design ◽  
Beam Steering ◽  
Lens Antenna

Beam-Steering Flat Lens Antenna Based on Multilayer Gradient Index Metamaterials

2018 ◽  
Vol 17 (8) ◽  
pp. 1510-1514 ◽  
Author(s):  
Dan Jia ◽  
Yingran He ◽  
Ning Ding ◽  
Jianzhai Zhou ◽  
Biao Du ◽  
...  
Keyword(s):  
Beam Steering ◽  
Gradient Index ◽  
Lens Antenna ◽  
Flat Lens

scholarly journals A Frequency and Radiation Pattern Combo-Reconfigurable Novel Antenna for 5G Applications and Beyond

Electronics ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 1372
Author(s):  
Muhammad Kamran Shereen ◽  
Muhammad Irfan Khattak ◽  
Mu’ath Al-Hasan
Keyword(s):  
Radiation Pattern ◽  
Beam Steering ◽  
Beam Width ◽  
Antenna System ◽  
Oxide Semiconductor ◽  
Control Surface ◽  
Nmos Transistor ◽  
Steering Angle ◽  
Resonant Frequencies ◽  
Fifth Generation

This paper presents a novel combo-reconfigurable architecture for the frequency and radiation patterning of a novel antenna system for future fifth-generation (5G) millimeter-wave mobile communication. The tuning system independently controls the frequency and radiation pattern shifts, without letting them affect each other. The proposed antenna consists of two patches, radiating at 28 GHz and 38 GHz. A negative-channel metal–oxide–semiconductor (NMOS) transistor was used as a switch for ON/OFF states. Frequency reconfiguration was controlled by switches SD1 and SD2, while pattern reconfigurability was achieved by SD3–SD18. The desired resonant frequencies of 28 GHz and 38 GHz were achieved by varying patch dimensions through the ON and OFF states of the SD1 and SD2 switches. Similarly, parasitic stubs on the ground are used to control surface currents, which results in pattern reconfiguration. The results were analyzed for 18 different combinations of the switch states. Adding/removing parasitic stubs and switches changed the beam steering angle (by 45° shift) from 0° to 180°, which modified the stub dimensions and changed the beam-width of the main lobe.

Fully Printed Static Gain Reconfigurable Conformal Patch Antenna Arrays

2017 ◽  
Vol 2017 (1) ◽  
pp. 000604-000607
Author(s):  
Nolan Grant ◽  
Mahdi Haghzadeh ◽  
Alkim Akyurtlu
Keyword(s):  
Radiation Pattern ◽  
Antenna Arrays ◽  
Patch Antenna ◽  
Phase Shifter ◽  
Mechanical Design ◽  
Low Cost ◽  
Beam Steering ◽  
Flexible Substrate ◽  
New Left ◽  
Phase Compensation

Abstract This work presents design and fabrication processes for creating statically gain-reconfigurable conformal patch array antennas. In our previous work, a fully printable and conformal antenna array on a flexible substrate with a new Left-Handed Transmission Line (LHTL) phase shifter based on a Barium Strontium Titanate (BST)/polymer composite was computationally studied for radiation pattern correction and beam steering applications. In this work, additive manufacturing techniques were used to experimentally demonstrate the phase compensation needed to improve the degraded performance of the conformal arrays. An Aerosol Jet direct-write printer was used to print several patch antenna arrays and was tested in an anechoic chamber to establish baseline gain metrics. Once a baseline is established, a high dielectric constant material (BST nano-ink) was dispensed onto the IDCs in several configurations, to provide the necessary phase compensation. The antennas were retested and the changes in their gain profiles were investigated. The findings of this work and the proposed method allow for gain compensation of curved conformal antennas and post-production modification of the radiation pattern of antenna arrays. This work has potential applications in the automotive industry due to the low cost of production and the ability to be integrated onto curved conformal surfaces without interfering with super structure or other mechanical design related criteria.

Inhomogeneous lens antenna design with fan-beam radiation pattern

2016 ◽  
Vol 14 (12) ◽  
pp. 121601-121605 ◽  
Author(s):  
Mohammad Mahdi Taskhiri Mohammad Mahdi Taskhiri ◽  
Mohammad Khalaj-Amirhosseini Mohammad Khalaj-Amirhosseini
Keyword(s):  
Radiation Pattern ◽  
Antenna Design ◽  
Beam Radiation ◽  
Lens Antenna

All-Metal Beam Steering Lens Antenna for High Power Microwave Applications

2017 ◽  
pp. 1-1 ◽  
Author(s):  
Xuelong Zhao ◽  
Chengwei Yuan ◽  
Lie Liu ◽  
Shengren Peng ◽  
Qiang Zhang ◽  
...  
Keyword(s):  
High Power ◽  
Beam Steering ◽  
Lens Antenna ◽  
High Power Microwave ◽  
Microwave Applications ◽  
Power Microwave
Sign in / Sign up

Export Citation Format

Share Document