![]() The design and optimization have done to operate at downlink frequency of 12.54 GHz and uplink frequency of 14.15 GHz. In this study, a simple new compact design of single layer single patch element with microstrip feed line is proposed for dual frequency operation in Ku-band. On the other hand, using single feed antennas can reduce complexity Suffer from disadvantages such as thick substrate, difficult manufacturing and Separate probes and one microstrip and one aperture. Via and one microstrip ( Kim et al., 1999), two These feeds are composed of two separate microstrip lines, one In these structures, a combination of two different feeds Of researchers using stacked patches with two separate feeds for each frequencyīand and polarization. To achieve dual-band operation ( Choo and Ling, 2003).ĭual frequency operation of microstrip antennas have been studied by a number In addition, there are planar antennas of special geometries Or using resonator ( Hady et al., 2008) are the The patch with shorting pins ( Tang et al., 1997 ġ997), using stacked patches ( Augustin et al., Among them, loading slitsĪl., 2008), using slots in the patch ( PongchompooĮt al., 2009 Chen and Yung, 2009), loading ![]() Has been proposed to obtain dual frequency operation. Microstrip antennasĬan avoid the use of two different single band antennas. Systems such as satellites, Global Position System (GPS) are required to operateĪt two different frequencies apart too far from each other. Of the inherent narrow bandwidth of the microstrip antenna. However, applications such as frequency tuning take advantage Nevertheless, microstripĪntennas typically suffer from narrowband radiation (a few percent of centerįrequency), low gain, poor polarization purity, tolerance problem and limited Integrated circuit techniques, have a low profile, are conformal and can beĮasily integrated in arrays and with electronic components. Inherently they have numerous advantages like easy to fabricate using standard Theory and design in recent years and are increasingly finding application inĪ wide range of modern microwave systems ( Pozar, 1992). Microstrip antennas have been one of the most innovative topics in antenna
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