Design Of Wide-Band Monopole Antenna For Indoor Multi-Operations Applications

Johari, Nursharul Mukhzir (2017) Design Of Wide-Band Monopole Antenna For Indoor Multi-Operations Applications. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Lately,technological developments have stimulated growth of the personal computer and other electronic devices for indoor requirement in offices,manufacturing,shopping areas and warehouses.It is said that about 70% of the demands for high-speed data services occur in indoor environments.In indoor application,the coverage is not as good as outdoor application because the signal has experience losses or attenuation.Therefore,monopole antenna was proposed in this project satisfy with multiple operation application.Multiple operation application very needed in nowadays as the development of the technology.Monopole antenna is the suitable candidate to overcome this problem due to its performance and size. In [2],a compact broadband antenna for indoor distributed antenna system for 2G, 3G, 4G and WiFi was proposed. However,the monopole antenna design[2] have more complex structure.The demand of wideband and compact antennas are increasing dramatically with the rapid development of wireless communication system and their application[3]. The impedance bandwidth of the antenna measure from 2.45GHz until 5.35GHz is about 74.4%.The reduction in the ground plane size reduces bandwidth and gain[4].There are several factor control the bandwidth listed in the journal[4] such as inset length,width of patch and height of the air gap.The L-strip electromagnetic coupling feed in antenna design can increase the bandwidth and avoid additional matching circuitry for impedance matching.

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