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This paper describes a 28GHz CMOS direct conversion transceiver with packaged 2×4 patch antenna arrays for 5G communication. Test results show good RF performances of Rx NF 6.7dB, Maximum Tx EIRP 31.5dBm (1PA Pout_sat =10.5dBm), LO integrated phase noise −37.8dBc (0.67°), Rx/Tx EVM around 2.2% (−33.1dB) at mid RF power, and well-fitted beam control capability.
This work establishes a state-of-the-art protective measure on how the smart antennas can be used effectively to curtail the activities of hackers/intruders on radio frequency signals. Hackers can scan confidential information/data belonging to organization, law enforcement and even interception of radio frequencies signals to the public usage. In this analysis, three antenna elements array have been...
This paper presents an active array antenna for wideband code division multiple access (WCDMA) base station application with remote controllable radiation patterns. The proposed array consists of eight antenna elements and each element is integrated with a phase controllable radio frequency (RF) transceiver. The radiation pattern of the active array antenna or phased array antenna is consequently...
Recent advances in silicon technology, mm-Wave integrated circuit/antenna/package design, and beam-forming techniques at 60GHz, together with the emergence of suitable wireless standards, have enabled consumer electronics products to support wireless transmission of multi-Gb/s data such as high-definition (HD) audio/video content. Further expansion into portable and mobile platforms will require lower...
In next generation broadband wireless access (BWA) systems, cell shrinkage and blind zones might occur at cell edges due to constraints on transmission power and the increase in propagation loss with broadband and higher frequency bands, respectively. Thus, hierarchical BWA systems consisting of micro and macro base transceiver stations (BSs) installed around the macro BS are considered as one of...
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