3G device

The paper presents the monopole antenna’s structure, L antenna’s structure, F antenna’s structure and shows developments toward antenna’s structure enhancement. Thus, the paper presents a method to enhance the structure of planar inverted F antenna (PIFA) by meandering and folding techniques for the monopole antenna placed on FR4 dielectric.

4p vilexus 05-10-2022 10 4   Download

The third-generation streamlined liner of the pharynx airway (SLIPA-3G) is a new-generation supraglottic airway device (SAD) that is non-cuffed and disposable, with a sealing pressure that varies dynamically with the airway pressure. This study compared the SLIPA-3G with the laryngeal mask airway supreme (LMAS) in patients undergoing laparoscopic cholecystectomy.

6p viisaacnewton 26-04-2022 10 1   Download

There has been an increase in the potential use of wireless devices in healthcare domain for a variety of reasons. The most commonly used device is the cellular phone, which emits strong electromagnetic energy affecting thereby the functionality of the vital medical equipment such as ventilators, ECG monitors, cardiac monitors, and defibrillators. This prompted the healthcare concerns to restrict the use of these phones in the proximity of critical and non-critical care medical equipment.

12p kequaidan1 16-11-2019 14 1   Download

This paper proposes a novel structure of the inverted F antenna based on meandering and folding methods for the monopole antenna placed on FR4 dielectric plate. The proposed antenna has compact size (21 mm × 14 mm × 3.2 mm). Moreover, this antenna still offers enough wide bandwidth (VSWR ≤ 2), which covers 3G bandwidth. Using the simulation program to optimize antenna structure and calculate the antenna parameters in order to verify its applicability for the 3G mobile devices.

7p vixyliton2711 17-04-2019 39 1   Download

A full-color guide to the iPhone, including the new iPhone 3G S With its new 3G S model, the iPhone is definitely the must-have mobile device. This fully updated guide covers all the cool features of the fastest iPhone ever, including the Spotlight search feature, voice control, and video camera capability."iPhone For Dummies, 3rd Edition" also covers the basics of using the multitouch interface, setting up iTunes, browsing the Internet, sending and receiving e-mail, and more.

240p ken333 14-06-2012 105 20   Download

This book’s title ‘Dynamic and Mobile GIS: Investigating Changes in Space and Time’, part of the Innovations in GIS book series, may need some explaining. The technology which will support Mobile GIS is rapidly gaining popularity and effectiveness (PDAs, wireless internet, internet-based GIS, 3G and 4G telecommunications). The application domain of Mobile GIS is wherever important geo-spatial events are taking place – not back at the office.

320p 951628473 07-05-2012 97 14   Download

Third generation (3G) networks aim to merge two of the most successful paradigms in communications: cellular networks and the Internet. The IP (Internet Protocol) Multimedia Subsystem (IMS) is the key element in the 3G architecture that makes it possible to provide ubiquitous cellular access to all the services that the Internet provides. Picture yourself accessing your favorite web pages, reading your email, watching a movie, or taking part in a videoconference wherever you are by simply pulling a 3G hand-held device out of your pocket. This is the IMS vision....

4p 0984272663 27-04-2011 76 8   Download

Increased bandwidth for Third Generation (3G) communication not only expands the capacity to support more users, but also makes it possible for network providers to offer new services with higher bit rates for multimedia applications. With increased bit rates and programmable DSPs, several new types of applications are possible for mobile devices, that include audio and video content. No longer will there be a limited 8–13 kbps, suitable only for compressed speech. At higher bit rates, the same phone’s speakers and DSP with different software can be used as a digital radio....

22p tienvovan 16-09-2010 81 8   Download

Practical implementation of software defined radio (SDR) for mobile wireless devices will place significantly increased demands on design approaches and integrated circuit (IC) technology. Next generation wireless terminals, third generation (3G) and beyond, are required to provide much higher levels of features, functions, and services than their second generation (2G) counterparts. Examples include such capabilities as higher throughput, multiband, multimode, multimedia, and location-based services.

32p vaseline 30-08-2010 106 10   Download

Over the past few years, many fundamental changes have taken place in wireless communications that will influence the future of this dynamic field. One phenomenon driving these changes has been the integration of wireless communicationdevices in people’s lives. While the 1990s were the years when wireless voice telephony became popular, the 2000s should be the time when wireless data applications are truly un-tethered from homes and offices. As more people adopt wireless communication devices and applications effected by these devices, the demand on wireless networks will continue to grow..

280p thaudiennhe 10-07-2010 178 79   Download

One of the greatest challenges facing mobile operators today is reducing the cost of the backhaul portion of their network, while increasing reliability and revenue generating opportunities. Additionally, mobile operators need to be sure that the backhaul transport solution is capable of addressing the traditional 1 and 2G-based Radio Access Networks (RANs) as well as the 3G-based RANs. The number of 3G-based RANs will grow driven by new services with higher bandwidth that enable end-users to get broadband access through their mobile devices....

4p halanh 14-08-2009 84 7   Download