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A novel four-way power divider based on substrate integrated waveguide is presented. Broadband performance is obtained by using a stepped coaxial line transformer together with tapered substrate integrated waveguides. Simulated and measured results show that good performance of insertion loss and impedance matching is achieved over a broad bandwidth from 4 GHz to 11 GHz. When the proposed power divider...
A broadband suspended patch antenna fed by co-planar double L-probes is proposed in this paper. Unlike a conventional L-probe fed patch antenna, the co-planar double L-probe is composed of two identical L-shaped strips which are printed entirely on a substrate and placed symmetrically below the patch. Hence, this kind of L-probe is more flexible to design and convenient to fabricate than a conventional...
A novel co-planar L-probe fed microstrip patch antenna is proposed. Unlike a conventional L-probe, the co-planar L-probe is a L-shaped strip which is printed entirely on a substrate. The probe's substrate is placed vertically beneath the patch's substrate. The antenna can be easily fabricated in PCB craftwork and integrated with RF circuits. A prototype of the antenna which is designed to operate...
The onboard wireless communication in an airplane is very attractive for it can provide data, audio and video services very conveniently. Because many radio equipments should be powered down in the airplane, the available frequency band for broadband communication is very wide. The frequency used in the airplane should be carefully allocated so that the onboard communication system does not affect...
A broad band antenna consisting of half wave strip dipoles the arms of which are printed on opposite sides of a thin substrate is proposed. Four-element array is fabricated. The feed network comprised of power dividers and impedance transformers is designed to improve antenna performance. Antennas have bandwidth greater than 21% for VSWR<1.5 (without reflector) and 20% for VSWR<2 (with reflector)...
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