Aalto University, P.O. Box 11000, FI-00076 Aalto www.aalto.fi Author Janne Ilvonen Name of the doctoral dissertation Multiband and environment insensitive handset antennas Publisher School of Electrical Engineering Unit Department of Radio Science and Engineering Series Aalto University publication series DOCTORAL DISSERTATIONS 184/2014 Field of research Radio Engineering Manuscript submitted 2...

This study models the intention to use novel mobile peer-to-peer communications and content sharing services and determine their adoption potential. A sample of 155 Finnish customers with an advanced mobile handset was collected and analyzed. The Theory of Planned Behavior conceptual model for measuring behavioral intention was applied in the context of novel mobile services. The model was esti...

As the fifth-generation (5G) mobile communication is utilizing millimeter-wave (mmWave) frequency bands, electromagnetic field (EMF) exposure emitted from a 5G mmWave handset should be evaluated and compliant with relevant EMF limits in terms of peak spatial-average incident power density (PD). In this work, fast PD assessment method for using equivalent current (EQC) proposed. The EQC utilizes...

Antenna diversity has been used for many years as a method to mitigate multipath fading. For mobile communications, this has usually been conventionally at the base station, although there is an increasing demand for diversity antennas to be implemented at the mobile. The most common occurrence of this is in the Personal Digital Communications (PDC) network deployed in the Far East (1). Mobile ...

Due to increase of data browsing and downloading using 3G enabled mobile handset, it is often required handover mechanism from Universal Mobile Tele-communication System (UMTS) to UMTS, Long Term Evolution (LTE) or Global system for Mobile Communications (GSM) while the handset is continuously transmitting and receiving data from the connected Node-B in a high speed motion. In UMTS, the handhel...

Mobile phone customers face many choices regarding handset hardware, add-on services, and features to subscribe to from their service providers. Mobile phone companies are now increasingly interested in the drivers of migration to third generation (3G) hardware and services. Using real world data provided to the 10th Pacific-Asia Conference on Knowledge Discovery and Data Mining (PAKDD) 2006 Da...

A low profile planar inverted-F antenna (PIFA) is proposed for mobile handset applications. The proposed antenna covers DCS-1800 & PCS-1900 bands. The antenna consists of a square planar element suspended above the FR4 dielectric substrate. The ground plane is on the bottom side of the substrate. Overall size of the antenna is 22*22*5.2 mm3 and is well suited for mobile handsets due to its low ...

A modern mobile phone supports many features: voice and data calls, text messaging, phonebook, calendar, WAP browsing, games, etc. All these features are packaged into a handset with a small display and a special purpose keypad. The limited user interface and the intertwining of logically separate features cause problems in the development of the UI software for mobile phones. In this paper, we...

A low profile planar antenna for twelve-band operation in the mobile phone is presented. The proposed antenna radiating elements occupy an area equals 17 × 50 mm are mounted on the compact no-ground portion of the system circuit board to achieve a simple low profile structure. In order to overcome the shortcoming of narrow bandwidth for conventional planar printed antenna, a novel bandwidth enh...

With the continued demand for electronic systems and subsystems with more functionality, higher performance, smaller size and lower cost, system-in-package (SiP) modules have been growing rapidly in recent years as an alternative solution to system-on-chip (SoC). As a packaging technology platform, SiP allows a high degree of flexibility in the package architecture, particularly for radio frequ...