Low-profile, four-sector diversity antenna on high-impedance ground plane

2000 ◽  
Vol 36 (16) ◽  
pp. 1343 ◽  
Author(s):  
D. Sievenpiper ◽  
H.-P. Hsu ◽  
J. Schaffner ◽  
G. Tangonan ◽  
R. Garcia ◽  
...  
Keyword(s):  
Ground Plane ◽  
High Impedance ◽  
Low Profile ◽  
Diversity Antenna

Mutual coupling reduction of low-profile monopole antennas on high-impedance ground plane

2002 ◽  
Vol 38 (16) ◽  
pp. 849 ◽  
Author(s):  
H. Xin ◽  
K. Matsugatani ◽  
M. Kim ◽  
J. Hacker ◽  
J.A. Higgins ◽  
...  
Keyword(s):  
Mutual Coupling ◽  
Ground Plane ◽  
High Impedance ◽  
Low Profile ◽  
Monopole Antennas ◽  
Mutual Coupling Reduction

Low profile Salisbury screen radar absorber with high impedance ground plane

2009 ◽  
Vol 45 (1) ◽  
pp. 10 ◽  
Author(s):  
F. Che Seman ◽  
R. Cahill ◽  
V.F. Fusco
Keyword(s):  
Ground Plane ◽  
High Impedance ◽  
Low Profile

scholarly journals Impedance Enhancement of Textile Grounded Loop Antenna Using High-Impedance Surface (HIS) for Healthcare Applications

Sensors ◽  
2020 ◽  
Vol 20 (14) ◽  
pp. 3809
Author(s):  
Mohammed M. Bait-Suwailam ◽  
Isidoro I. Labiano ◽  
Akram Alomainy
Keyword(s):  
Impedance Matching ◽  
Loop Antenna ◽  
Healthcare Applications ◽  
Impédance Surface ◽  
Antenna Structure ◽  
Impedance Surface ◽  
High Impedance ◽  
Low Profile ◽  
Close Proximity ◽  
High Impedance Surface

In this paper, impedance matching enhancement of a grounded wearable low-profile loop antenna is investigated using a high-impedance surface (HIS) structure. The wearable loop antenna along with the HIS structure is maintained low-profile, making it a suitable candidate for healthcare applications. The paper starts with investigating, both numerically and experimentally, the effects of several textile parameters on the performance of the wearable loop antenna. The application of impedance enhancement of wearable grounded loop antenna with HIS structure is then demonstrated. Numerical full-wave simulations are presented and validated with measured results. Unlike the grounded wearable loop antenna alone with its degraded performance, the wearable loop antenna with HIS structure showed better matching performance improvement at the 2.45 GHz-band. The computed overall far-field properties of the wearable loop antenna with HIS structure shows good performance, with a maximum gain of 6.19 dBi. The effects of bending the wearable loop antenna structure with and without HIS structure as well as when in close proximity to a modeled human arm are also investigated, where good performance was achieved for the case of the wearable antenna with the HIS structure.

A Novel Wideband Pattern Diversity Antenna With a Low profile Based On Metasurface

2021 ◽  
pp. 1-1
Author(s):  
Jianfeng Liu ◽  
Zibin Weng ◽  
Zhi-Qiang Zhang ◽  
Yonghui Qiu ◽  
Yi-Xuan Zhang ◽  
...  
Keyword(s):  
Pattern Diversity ◽  
Low Profile ◽  
Diversity Antenna

A novel textured ferrite ground plane for low-profile spiral antenna

2013 ◽  
Vol 27 (13) ◽  
pp. 1720-1724
Author(s):  
Ming Chen ◽  
Chi-Chih Chen ◽  
John L. Volakis
Keyword(s):  
Ground Plane ◽  
Spiral Antenna ◽  
Low Profile

scholarly journals CPW-fed circularly-polarized antenna array with high front-to-back ratio and low-profile

Open Physics ◽  
2018 ◽  
Vol 16 (1) ◽  
pp. 651-655 ◽  
Author(s):  
Yilin Liu ◽  
Kama Huang
Keyword(s):  
Antenna Array ◽  
Coplanar Waveguide ◽  
Ground Plane ◽  
Axial Ratio ◽  
Antenna Design ◽  
Impedance Bandwidth ◽  
Feeding Method ◽  
Circularly Polarized ◽  
Low Profile ◽  
Novel Design

Abstract A novel design of a coplanar waveguide (CPW) feed antenna array with circular polarization (CP) and a high front-to-back ratio is described. The proposed CP array is achieved by using a compact CPW–slotline transition network etched in the ground plane. The measured results show that this kind of feeding method can improve the impedance bandwidth, as well as the axial ratio bandwidth of the CP antenna array and provide adequate gain. The proposed array can achieve a 6.08% impedance bandwidth and a 4.10% CP bandwidth. Details of the antenna design and experimental results are presented and discussed.

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