BROWSE
Detail
Conference Paper
Beam-squint minimization in microstrip series-fed array antenna using circuit of double negative materials
Cited 1 time in 
Share 
Share
- Authors
- Soon-Soo Oh, Lotfollah Shafai
- Issue Date
- 2005-07
- Citation
- IEEE Antennas and Propagation Society International Symposium 2005, pp.688-691
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- Double negative (DNG) metamaterials, where both relative permittivity and permeability are negative, show unusual characteristics. In principle an amplifier and properly selected matching circuits can be implemented with DNG circuits to simulate lossless double negative materials. A 4/spl times/1 series-fed active array antenna with an amplifier and DNG circuit was designed and fabricated. Its performance was compared with its corresponding conventional array, with direct connections, which was also designed and simulated. Simulated and measured results indicated that, with the DNG array, the variations of beam-squint angle and gain, over a bandwidth of 11%, were reduced considerably. The proposed DNG circuit can therefore find useful applications in several microwave applications including other active array antennas.
- KSP Keywords
- Active Array, Array antenna, Double negative(DNG), Double negative materials, Permittivity and permeability, Relative Permittivity, Series-fed array, matching circuit, microwave applications, simulated and measured results