This paper examines the concept of using an array of holes in a substrate for antenna performance impro¨ement. The finite-difference ( ) time-domain FDTD numerical technique is used to demonstrate the utility of the concept. The results clearly show the substantial radiation performance impro¨ement
Patch antennas on externally perforated high dielectric constant substrates
β Scribed by Colburn, J.S.; Rahmat-Samii, Y.
- Book ID
- 115514954
- Publisher
- IEEE
- Year
- 1999
- Tongue
- English
- Weight
- 344 KB
- Volume
- 47
- Category
- Article
- ISSN
- 0018-926X
- DOI
- 10.1109/8.817654
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
diffraction coefficient. The prediction results obtained using proposed dyadic coefficients are compared with published measurement [1]. The result showed that dyadic diffraction coefficient with modified reflection coefficient gives significant improvement than dyadic coefficient with Fresnel refle
## Abstract A fourβpole openβloop resonator bandpass filter fabricated on high dielectric constant (Zn~0.9~Mg~0.1~)TiO~3~ ceramic substrates is presented. The fullβwave simulator IE3D is utilized to calculate the coupling coefficients of each basic coupling structure and simulate Sβparameters of th
## Abstract The reading range of a tag antenna usually decreases markedly as the antenna size decreases, because of the antenna's reduced gain. This letter describes the use of circular polarization to reduce the size of a tag antenna without decreasing its reading range. This approach resulted in