[PDF] Top 20 A Multiband Four-Antenna System for the Mobile Phones Applications

... multi-antenna mobile terminals published operate only at relatively high frequency band, such as at ...the mobile communication devices ...[8], four-element antenna working in the UMTS ... See full document

... MIMO antenna in order to radiate efficiently, is thus designed as a novel structure of the simple NFC loop ...NFC antenna is located immediately above the secondary MIMO antenna which is mounted on the ... See full document

... of mobile communication systems, miniaturized multiband planar antennas have been widely used in wireless mobile handsets because of its light weight, low profile, low cost, high manufacturing ... See full document

... for multiband usage [6-7]. Circular microstrip fractal antenna has also been designed for ultra wide bandwidth and size reduction using self-similarity and space filling ...This antenna exhibits the ... See full document

... the antenna impedance in order to obtain a mismatch at a particular ...band antenna into a multiband antenna, we propose to transform a multiband antenna into a single operating ... See full document

... in mobile devices. Much attention has been focused on designing multiband antenna which can operate at both WLAN and WiMAX frequency bands [1, ...proposed multiband antennas in handheld ... See full document

... Eng. Prof. Mwangi Mbuthia was born in Nyeri, Kenya in 1952. He is an Associate Professor in the School of Engineering at the University of Nairobi. He received a B.Sc.(First Class Honours) in Electrical and Electronic ... See full document

... of multiband microstrip patch antenna. The proposed patch antenna can resonate at four unique frequencies between 2 GHz and 9GHz out of which two are considered to be useful ...accomplish ... See full document

... communication system has been widely applied, and MIMO becomes a key technology since it can increase the channel capacity without extra radiation power and spectrum ...for mobile phones, when the ... See full document

... patch antenna is proposed ...patch antenna. The proposed compact size microstrip antenna consist of a microstrip feed line on one side of the substrate with defective ground structure with ... See full document

... for Mobile (GSM: ...triple-band antenna with two lower resonant bands from ...Universal Mobile Telecommunication Systems (UMTS: ...the antenna which makes the design ...dual-band ... See full document

... a mobile phone as shown in Figure 8; mobile handset in free space, browsing mode (antenna between human fingers), talking position ...and antenna), and talking position with hand ...the ... See full document

... fractal antenna with microstrip line using PCB Connector feeding technique has been presented in this ...fractal antenna has been analysed using CST Microwave studio ...gives multiband performance to ... See full document

... potential applications in remote correspondence frameworks and helping the high transmission rates ...UWB applications, for example, ellipsoidal radio wire, TEM horn reception apparatus and log intermittent ... See full document

... The photograph of the manufactured reconfigurable antenna is shown in Figure 5. The antenna is fabricated on a 1.6 mm FR4 substrate with relative permittivity of ε r = 4.4. During measurements, the PIN ... See full document

... recent system, Koala, explores how modern architectures can have counter-intuitive energy/performance tradeoffs, presenting a model based on performance counters and other state [Snowdon ...enabled system ... See full document

... fabricated antenna consists of three arms (arm 1, arm 2, and arm 3). A 50 Ω microstrip line used to excite the antenna. It is obviously that arm 1 controls the resonance at 5.5 GHz, arm 2 determines the ... See full document

... and also to improve the impedance matching in the bands of LTE and GSM. The final step is to add the second shorted stub (see Fig. 1(a)). Fig. 3 shows that the step 3 results in the addition of WLAN band with little ... See full document

... 64-bit mobile elements can arrive these 12 monthsin the fashion of the low- to mid-variety snapdragon ...in mobile phones for 2G and 3G networks ispresented for the services-text messaging, voice and ... See full document

... A planar Iterated Pythagoras tree Fractal antennas (IPTFA) with Microstrip line feed are investigated. This particular IPTF antenna is capable to operate for the mobile Wi-Max (2-6 GHz) and also usable for ... See full document