High-directivity patch antenna with both photonic bandgap substrate and photonic bandgap cover
✍ Scribed by Min Qiu; Sailing He
- Book ID
- 102518697
- Publisher
- John Wiley and Sons
- Year
- 2001
- Tongue
- English
- Weight
- 232 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0895-2477
- DOI
- 10.1002/mop.1214
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
A new patch antenna system, which has both a photonic bandgap (PBG) substrate and a PBG cover, is proposed in the present paper. The impedance, radiation pattern, and directivity of such an antenna are studied by the finite‐different time‐domain method. The results show that the directivity of the PBG antenna is significantly improved. The dependence of the directivity on the frequency and other parameters is also studied. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 30: 41–44, 2001.
📜 SIMILAR VOLUMES
In this letter, a patch antenna on a photonic bandgap substrate is presented. A reduction in the le¨el of surface-wa¨e mode excitation has been obtained. This leads to impro¨ed efficiency, gain, and far-field radiation pattern. Furthermore, impro¨ements in the input return loss ha¨e been reported.
## Abstract A probe‐fed annular‐ring microstrip antenna with a photonic bandgap (PBG) ground plane operating in the higher order mode of TM~21~ for conical‐pattern radiation is experimentally demonstrated. The antenna studied is printed on a thin FR4 substrate (relative permittivity 4.4) and, owing
A highly birefringent hollow-core photonic bandgap fiber based on Topas cyclic olefin copolymer is designed. The rhombic hollow-core with rounded corners is formed by omitting four central air holes of the cladding structure. The guided modes, birefringence and confinement loss of the fiber are inve
## Abstract This paper presents an experimental study on the characteristics of annular‐ring patch antennas with slotted and photonic bandgap (PBG) ground planes for operation in the higher order TM~21~ mode for conical‐pattern radiation. The antenna studied has an air–layer substrate, and is fed u
A slab of ''woodpile'' photonic-bandgap PBG material is examined as a planar, all-dielectric reflector for a dipolermonopole antenna. Gain, field patterns, and input impedance are obtained using full electromagnetic calculations based on the finite-difference time-( ) domain FDTD method and measurem