scholarly journals Microwave Tomographic Imaging Utilizing Low-Profile, Rotating, Right Angle-Bent Monopole Antennas

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
N. R. Epstein ◽  
P. M. Meaney ◽  
K. D. Paulsen
Keyword(s):  
Measurement Data ◽  
Tomographic Imaging ◽  
Monopole Antenna ◽  
Bone Imaging ◽  
Advanced Imaging ◽  
Simple Mechanism ◽  
Low Profile ◽  
Monopole Antennas ◽  
Microwave Tomographic Imaging

We have developed a simple mechanism incorporating feedline bends and rotary joints to enable motion of a monopole antenna within a liquid-based illumination chamber for tomographic imaging. The monopole is particularly well suited for this scenario because of its small size and simplicity. For the application presented here a full set of measurement data is collected from most illumination and receive directions utilizing only a pair of antennas configured with the rotating fixture underneath the imaging tank. Alternatively, the concept can be adapted for feed structures entering the tank from the sides to allow for measurements with vertically and horizontally polarized antennas. This opens the door for more advanced imaging applications where anisotropy could play an important role such as in bone imaging.

scholarly journals DESIGN OF COMPACT PRINTED RECTANGULAR MONOPOLE ANTENNA AND U- SHAPED MONOPOLE ANTENNA FOR L-BAND AND S-BAND APPLICATIONS

2012 ◽  
pp. 106-110
Author(s):  
N.SURESH BABU
Keyword(s):  
High Performance ◽  
Ground Plane ◽  
Monopole Antenna ◽  
Consumer Electronics ◽  
Planar Surfaces ◽  
Low Profile ◽  
Monopole Antennas ◽  
Printed Monopole ◽  
L Band ◽  
Commercial Applications

In this paper we have investigated printed monopole antennas, which is basically a printed micro strip antenna with etched ground plane for multi-band applications. In particular we have fabricated and tested printed monopole antennas for L-band and S-band applications. Printed rectangular monopole antennas are studied first for L-band applications. In high performance aircraft, spacecraft, satellite, missile and consumer electronics applications, where weight, cost, performance, ease of installation, and aerodynamic profile are constraints, low profile antennas may be required. Presently there are many other government and commercial applications, such as mobile radio and wireless communications that have similar specification. To meet these requirements, micro strip patch antennas can be used. These antennas are low profile, conformable to planar and non planar surfaces, simple and inexpensive to manufacture. In this thesis mainly we have designed Rectangular printed monopole antenna and U-shape Printed monopole antennas for L-band and S-bands applications. The final structures are presented in this report after doing an extensive simulation study and analysis and presented relevant results.

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

Microwave Tomographic Imaging of the Heart in Intact Swine

2006 ◽  
Vol 20 (7) ◽  
pp. 873-890 ◽  
Author(s):  
S. Y. Semenov ◽  
V. G. Posukh ◽  
A. E. Bulyshev ◽  
T. C. Williams ◽  
Y. E. Sizov ◽  
...  
Keyword(s):  
Tomographic Imaging ◽  
Microwave Tomographic Imaging

A Metamaterial based Monopole antenna for Satellite based Navigation Applications

2020 ◽  
Vol 1 (1) ◽  
pp. 10-14
Keyword(s):  
Patch Antenna ◽  
Monopole Antenna ◽  
Additional Band ◽  
Feed Line ◽  
Low Profile ◽  
Loaded Structure

A metamaterial-based monopole antenna which resonates at L (L1 and L5) and S band for the IRNSS applications is described. The antenna has a low profile and is nearly is four times smaller in size than a conventional patch antenna. The multifrequency behavior is realized using a reactively loaded structure for the monopole antenna resulting in operation at both monopole and dipole modes. The monopole resonates at S Band and the dipolar mode resonance at L5 band. The novelty of the configuration is in realizing an additional band by introducing small square slot in the loaded structure. Copper wires are used to balance the current between the two ground at the antenna and the CPW feed line. The performance of the antenna is evaluated using ANSYS HFSS.

A Metamaterial based Monopole antenna for Satellite based Navigation Applications

2020 ◽  
Vol 1 (1) ◽  
pp. 10-14
Keyword(s):  
Patch Antenna ◽  
Monopole Antenna ◽  
Additional Band ◽  
Feed Line ◽  
Low Profile ◽  
Loaded Structure

A metamaterial-based monopole antenna which resonates at L (L1 and L5) and S band for the IRNSS applications is described. The antenna has a low profile and is nearly is four times smaller in size than a conventional patch antenna. The multifrequency behavior is realized using a reactively loaded structure for the monopole antenna resulting in operation at both monopole and dipole modes. The monopole resonates at S Band and the dipolar mode resonance at L5 band. The novelty of the configuration is in realizing an additional band by introducing small square slot in the loaded structure. Copper wires are used to balance the current between the two ground at the antenna and the CPW feed line. The performance of the antenna is evaluated using ANSYS HFSS.

Broadband Antennas

2016 ◽  
pp. 27-71
Author(s):  
Zhiya Zhang ◽  
Masood Ur-Rehman ◽  
Xiaodong Yang ◽  
Erchin Serpedin ◽  
Aifeng Ren ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Patch Antenna ◽  
Monopole Antenna ◽  
Broadband Antennas ◽  
Low Profile ◽  
Bowtie Antenna

Apart from the sleeve monopole, this chapter discusses other broadband antennas as well, and the performance evaluation in terms of various measured and simulated parameters is also illustrated. This chapter will help antenna engineers get a better understanding of the antennas discussed and make a comparison with other broadband antennas. The broadband antennas that have been discussed in this chapter include: Low-profile sleeve monopole antenna, Dual-sleeve monopole antenna, Disc-conical sleeve monopole antenna, Wideband with dumbbell-shaped open sleeve antenna, Wideband unidirectional patch antenna with G-shaped strip feed, Wideband folded bowtie antenna with G-shaped strip feed and tuning stubs, Wideband bowtie antenna with inverted L-shaped coupling feed and tuning stubs.

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