Dual-frequency and broad-band antennas with stacked quarter wavelength elements

被引：82
|
作者：
Zaïd, L [1 ]
Kossiavas, G [1 ]
Dauvignac, JY [1 ]
Cazajous, J [1 ]
Papiernik, A [1 ]
机构：
[1] Univ Nice, Lab Elect Antennes & Telecommun, CNRS, UPRESA 6071, F-06560 Valbonne, France
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 1999年 / 47卷 / 04期
关键词：
broad-band antennas; dual frequency antennas; microstrip antennas; quarter-wavelength elements; stacked patches;
D O I：
10.1109/8.768804
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Original lightweight, low-cost, and compact air-filled planar antennas with short-circuited elements, fed by coaxial probe, for dual-frequency (S-antenna) and wide-band applications (E-antenna) are investigated. The two-band frequency antenna is formed of two stacked quarter-wavelength elements, short-circuited along diametrically opposed planes. This structure offers two modes with different radiation characteristics. The ratio between the two frequencies can be closely controlled within a range varying from 1.3-2. A bandwidth of 30% for a VSWR < 2 is demonstrated using two stacked quarter-wavelength elements short-circuited along the same plane. Numerical simulation results are compared with experiments and a very good agreement is observed. Radiation patterns and input impedance of both structures are measured and the effects of various physical parameters are presented.
引用
收藏
页码：654 / 660
页数：7
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