Dual-band Microstrip Antenna for 4G-LTE Handheld Devices

... for 3G mobile handsets in Vietnam [6] This is the starting point for the design of the 4G-LTE antenna described in this paper In this paper, a dual-band, omni-directional microstrip antenna for ... Compact dual-band monopole antenna for lte mobile phones Loughborough Antennas & Propagation Conference, pages 593–596, November 2010 [2] T Hariyadi D Sugianto Design of micro...

Ngày tải lên: 13/08/2015, 10:00

... Fig The real antenna Conclusion Fig The measurement result The designed antenna suitable for GSM/UMTS operation in an advance mobile handsets has been demonstrated The return loss bandwidths of ... of the lower and upper modes of the proposed antenna cover the required bandwidths of the GSM/UMTS systems The proposed antenna is especially suited for application in 3G mobil...

Ngày tải lên: 05/03/2014, 11:21

... size on the performmance of microstrip patch-type tag antennas for passive RFID, IEEE, vol4 (2005) [3] Woosung Lee, Kihun Chang, Young Joong Yoon, Small RFID tag antenna with bandwidthenhanced ... Choi, Dualband Dipole antenna for ISO 18000-9/ISO 18000-4 passive RFID tag application [5] David M Pozar, Microwave Engineering, John Willey & Son, INC, Second Edition [6] Prof Phan A...

Ngày tải lên: 22/03/2014, 09:20

... expressions and quantification The action planner, an adapted and enhanced version of (L¨ ckelt, 2004), uses non-linear regression o planning and the notion of communicative games to trigger and control ... or continue searching Conclusions The MIAMM final prototype combines speech with new techniques for haptic interaction and data visualization to facilitate access to multimedia databases...

Ngày tải lên: 20/02/2014, 16:20

... 4-18 Bluetooth Security Checklist 4-20 Bluetooth Ad Hoc Network Risk and Security Summary .4-22 Wireless Handheld Devices 5-26 5.1 5.2 5.3 Wireless Handheld Device ... of wireless networks, devices, standards, and security issues is presented in this section 2.1 Wireless Networks Wireless networks serve as the transport mechanism between devices and among...

Ngày tải lên: 14/03/2014, 20:20

... scores of TRIM -Diabetes domains between responses of roughly "Slightly" and "Somewhat" as the minimally important interval For example, the difference in the mean response for the TRIM -Diabetes ... inhaled and pump delivered insulin and thereby forming the basis for the TRIM -Diabetes/ Device development project Information regarding the methodology for...

Ngày tải lên: 18/06/2014, 19:20

... inhaled and pump delivered insulin and thereby forming the basis for the TRIM -Diabetes/ Device development project Information regarding the methodology for the collection of patient interview ... reach the saturation point whereby no new information was gathered regarding the treatment impact of inhaled and pump delivered insulin This data was then combined wit...

Ngày tải lên: 20/06/2014, 16:20

... (i.e., thousands of devices) and perform efficient data access and queries, for example, for accessing device properties, for querying for devices that match certain requirements, or for estimating ... Technologies and Factory Automation (ETFA ’09), Mallorca, Spain, September 2009 [2] H Dibowski and K Kabitzsch, Ontology-based device descriptions and triple sto...

Ngày tải lên: 21/06/2014, 11:20

... the one for the QCIF and the one for the CIF format The former format requires operating frequencies below 25 MHz and the corresponding power consumption is below mW, while for the CIF format ... algorithm for block motion estimation, ” IEEE Transactions on Circuits and Systems for Video Technology, vol 4, no 4, pp 438– 442, 1994 [6] L.-M Po and W.-C Ma, “A novel four-step sear...

Ngày tải lên: 22/06/2014, 19:20

... A Reconfigurable Spiral Antenna for Adaptive MIMO Systems on microwave laminate substrates that best meet the antenna performance characteristics An MRA can dynamically configure its structural ... a more complex reconfigurable antenna design ANTENNA STRUCTURE, OPERATIONAL MECHANISM FABRICATION, AND RESULTS Spiral antennas are attractive for communication applications...

Ngày tải lên: 23/06/2014, 00:20

Ngày tải lên: 03/07/2014, 21:41

... NITINOL CYMBAL TRANSDUCERS FOR TUNEABLE ULTRASONIC DEVICES Andrew Feeney A thesis for the degree of Doctor of Philosophy (PhD) Submitted ... resonance in a cymbal transducer The cymbal transducer is designed to be actively tuneable by the incorporation of Nitinol end-caps in the transducer assembly The characterisation of Nitinol transducers ... to superelastic Ni...

Ngày tải lên: 22/12/2014, 20:01

... of the metal and semiconductor The understanding of the interfacial electronic structure[41] forms the basis for understanding and improving the performance of organic electronic devices A proper ... of organic semiconductors, let us take a brief look at organic semiconductors 1.4 Organic Semiconductors Organic semiconductors can be divided broadly into two main groups: i)...

Ngày tải lên: 10/09/2015, 15:49

... substantial market share for data storage systems in the foreseeable future However, to gain a wider application in future data storage systems, future HDDs will have to offer greater storage capacities ... ADVANCED CONTROL TECHNIQUES FOR FUTURE STORAGE DEVICES THUM CHIN KWAN (B.Eng (Hons.), NUS ) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY DEPARTMENT...

Ngày tải lên: 14/09/2015, 14:02