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A compact dual-band 3-way metamaterial power divider with the in-phase outputs is presented. Firstly, fully printed CRLH(composite right and left-handed) 2∶1-unequal and 1∶1-equal power dividers are designed for 900-MHz and 2.4-GHz bands. Secondly, an initial 1∶1∶1 power divider is formed by combining the input of the 2-way equal block into an output of the unequal block, and trimming the interconnection...
A miniature dual-band 3-way metamaterial power divider with the three identical output phase is presented. Firstly, fully printed CRLH(composite right and left-handed) 2∶1-unequal and 1∶1-equal power dividers are designed for 900-MHz and 2.4-GHz bands. Secondly, an initial 1∶1∶1 power divider is formed by combining the input of the 2-way equal block into an output of the unequal block, and trimming...
In this paper, a flat and small-footprint slot array antenna is proposed to build a light-weight X- and Ku-band satellite communication receiver. The overall geometry does not necessitate classic metallic waveguides to avoid being bulky and heavy, but has a very compact and low-loss duplexer flanked by the X- and Ku-band slot-array antennas all of which are in the form of SIW(substrate integrated...
In this paper, a miniature UHF-band Zigbee antenna is proposed. Considering a lighter weight and smaller footprint of the Zigbee platform attached to a walking person, the antenna is meandered on the top and partially short circuited on the bottom, and optimized with non-uniform widths and lengths of the radiating element, and capillary paths. Due to these contributing factors, the physical area is...
An effective method s proposed to enhance the SI and PI of a power-bus structure PBS) in a layered medium PCB by suppressing the EMI-causing resonance mode It s implemented by a complementary split-ring-resonator as a 1-cel metamaterial-inspired geometry formed in the PBS to remove the resonance that hinders the signal transfer from one layer to another. The method is verified by the full-wave simulation...
Spiral antennas have been adopted a lot over the linear polarization counterparts, since the circular polarizations of their far-field patterns can improve the versatility of wireless communication in multiple-fading and multiple-reflection environment. Nonetheless, there are shortcomings from the conventional spiral antenna systems, which are poor channel selectivity and large physical volumes. Most...
We significantly diminish the interference between the radiating elements for a miniature MIMO antenna system on the basis of composite right- and left-handed transmissionline(CRLH-TL). The element radiating structure has capacitively coupled parallel metal parts and slotted ground that correspond to the CRLH-TL to prohibit the volume from growing for an LTE high band. The metal line suspended over...
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