Scattering and radiation characteristics of step discontinuity in a double-negative (DNG) slab waveguide operating in the evanescent surface mode

2006 ◽  
Vol 48 (6) ◽  
pp. 1085-1088 ◽  
Author(s):  
Meng Huang ◽  
Shanjia Xu
Keyword(s):  
Slab Waveguide ◽  
Surface Mode ◽  
Double Negative ◽  
Radiation Characteristics ◽  
Step Discontinuity ◽  
Scattering And Radiation

scholarly journals Reduction of the In-Band RCS of Microstrip Patch Antenna by Using Offset Feeding Technique

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Weiwei Xu ◽  
Junhong Wang ◽  
Meie Chen ◽  
Zhan Zhang ◽  
Zheng Li
Keyword(s):  
Frequency Band ◽  
Plane Waves ◽  
Patch Antennas ◽  
Radiation Characteristics ◽  
Antenna Structure ◽  
Microstrip Patch Antennas ◽  
Microstrip Patch ◽  
Feeding Technique ◽  
Structural Mode ◽  
Scattering And Radiation

This paper presents a method for implementing a low in-band scattering design for microstrip patch antennas based on the analysis of structural mode scattering and radiation characteristics. The antenna structure is first designed to have the lowest structural mode scattering in a desired frequency band. The operating frequency band of the antenna is then changed to coincide with that of the lowest structural mode scattering by adjusting the feed position on the antenna (offset feeding) to achieve an antenna with low in-band radar cross section (RCS). In order to reduce the level of cross polarization of the antenna caused by offset feeding, symmetry feeding structures for both single patch antennas and two-patch arrays are proposed. Examples that show the efficiency of the method are given, and the results illustrate that the in-band RCS of the proposed antennas can be reduced by as much as 17 dBsm for plane waves impinging from the normal direction compared to patch antennas fed by conventional methods.

scholarly journals SCATTERING AND RADIATION CHARACTERISTICS OF ANTENNA SYSTEMS UNDER NOSE DIELECTRIC RADOMES

2017 ◽  
Vol 76 ◽  
pp. 141-157 ◽  
Author(s):  
Oleg I. Sukharevsky ◽  
Vitaly Vasylets ◽  
Sergey V. Nechitaylo
Keyword(s):  
Radiation Characteristics ◽  
Antenna Systems ◽  
Scattering And Radiation

Surface waves on a grounded double-negative (DNG) slab waveguide

2005 ◽  
Vol 44 (6) ◽  
pp. 494-498 ◽  
Author(s):  
Mohammed M. Bait Suwailam ◽  
Zhizhang (David) Chen
Keyword(s):  
Surface Waves ◽  
Slab Waveguide ◽  
Double Negative
Sign in / Sign up

Export Citation Format

Share Document