Jari Holopainen

Jari Holopainen

Yliopistonlehtori
Yliopistonlehtori
T411 Dept. Electronics and Nanoeng
Full researcher profile
https://research.aalto.fi/...

Contact information

Postal address
Maarintie 8 02150 Espoo Finland

Publications

Beam-Steerable Transponder Based on Antenna Array and Phased Modulators

Tauseef Ahmad Siddiqui, Jari Holopainen, Ville Viikari 2021 IEEE Antennas and Wireless Propagation Letters

Bluetooth antenna for metal-cased smart jewellery

Tauseef Siddiqui, Prabhat Khanal, Lauri Vähä-Savo, Niko Lindvall, Jari Holopainen, Ville Viikari 2020 Electronics Letters

Broadband Transponder Based on Frequency-Reconfigurable Cluster Antenna and Phased Modulators

Tauseef Siddiqui, Prabhat Khanal, Jari Holopainen, Ville Viikari 2020 IEEE Antennas and Wireless Propagation Letters

Concept of Beam Steerable Transponder Based on Load Modulation

Tauseef Siddiqui, Prabhat Khanal, Jari Holopainen, Ville Viikari 2020 14th European Conference on Antennas and Propagation, EuCAP 2020

MIMO Antenna Arrangement

Jari-Matti Hannula, Ville Viikari, Jari Holopainen 2019

Bluetooth Antenna for Smart Jewellery with Metal Covers

Rasmus Luomaniemi, Christian Cziezerski, Henri Mäki, Jari Holopainen, Ville Viikari 2019 Proceedings of the European Conference on Antennas and Propagation

Ambient Backscattering Transponder with Independently Switchable Rx and Tx Antennas

Tauseef Siddiqui, Jari Holopainen, Ville Viikari 2019 IEEE Sensors Letters

Antenna tuning without physical matching elements (invited)

Jari-Matti Hannula, Ville Viikari, Tapio Saarinen, Anu Lehtovuori, Jari Holopainen 2017 Proceedings of the 6th Asia-Pacific Conference on Antennas and Propagation

Frequency Reconfigurable Multiband Handset Antenna Based on a Multichannel Transceiver

Jari Matti Hannula, Tapio Saarinen, Jari Holopainen, Ville Viikari 2017 IEEE Transactions on Antennas and Propagation

Further investigations on the behavior of a frequency reconfigurable antenna cluster

Jari Matti Hannula, Jari Holopainen, Ville Viikari 2017 2017 11th European Conference on Antennas and Propagation, EUCAP 2017

A study of 5G antennas in a mobile terminal

Jari Holopainen, Jari Matti Hannula, Ville Viikari 2017 2017 11th European Conference on Antennas and Propagation, EUCAP 2017

Study on non-linear effects of two coupled UHF-band RFID tags

Jari Holopainen, Xinwei Gao, Ville Viikari 2017 2017 XXXIInd General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS)

RFID-Based Book Finder [Education Corner]

Lasse Toivanen, Mikko Heino, Aapo Oksman, Aapo Vienamo, Jari Holopainen, Ville Viikari 2016 IEEE Antennas and Propagation Magazine

Wideband monopole antenna for RF power scavenger

M. K. Leino, H. Partanen, N. Lindvall, R. Luomaniemi, T. Kangas, D. Tzarouchis, Jari Holopainen, V. Viikari 2016 Proceedings of the 2016 IEEE Antennas and Propagation Society International Symposium, APSURSI 2016

Suitable multiantenna placement in mobile handsets based on electromagnetic isolation

Janne Ilvonen, Jari Holopainen, Kimmo Rasilainen, Anu Lehtovuori, Ville Viikari 2016 2016 10th European Conference on Antennas and Propagation, EuCAP 2016

Teaching experiment in Aalto University

Jari Holopainen, Dimitrios C. Tzarouchis 2016 Proceedings of the 2016 URSI Commission B International Symposium on Electromagnetic Theory, EMTS 2016

Concept for Frequency Reconfigurable Antenna Based on Distributed Transceivers

Jari-Matti Hannula, Jari Holopainen, Ville Viikari 2016 IEEE Antennas and Wireless Propagation Letters

Tunable MIMO Antenna for Small Handsets

Kimmo Rasilainen, Anu Lehtovuori, Janne Ilvonen, Jari Holopainen, Risto Valkonen, Ville Viikari 2015 9th European Conference on Antennas and Propagation (EuCAP 2015), Lisbon, Portugal, April 12-17, 2015

Dual-resonant PIFA for Body Area Networks

Sampo Salo, Gaurav Khairkar, Jari Holopainen, Ville Viikari 2015 International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, IEEE, Vancouver, Canada, July 19-24, 2015

Double loop matching technique for robust UHF RFID tag antennas

Mikko Heino, Jalmari Toivanen, Jari Holopainen, Ville Viikari 2014 2014 IEEE Antennas and Propagation Society International Symposium (APSURSI), Memphis, Tennessee, USA, July 6-11, 2014

Design Strategy for 4G Handset Antennas and a Multiband Hybrid Antenna

Janne Ilvonen, Risto Valkonen, Jari Holopainen, Ville Viikari 2014 IEEE Transactions on Antennas and Propagation

Multiband Frequency Reconfigurable 4G Handset Antenna with MIMO Capability

Janne Ilvonen, Risto Valkonen, Jari Holopainen, Ville Viikari 2014 PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER

Opetuksen kehittämiskokeilu: klikkereihin perustuvien esitestien käyttö

Jari Holopainen, Keijo Nikoskinen, Luis Costa 2013 Peda-forum-päivät 2013 (Opetuksen kulttuurin muutos), Tampere, Suomi, elokuu 20-21, 2013

Extension to Characterization Model for GPS Antenna Performance in Mobile Terminals

Janne Ilvonen, Kimmo Rasilainen, Risto Valkonen, Jari Holopainen, Joonas Krogerus, Ville Viikari 2013 IEEE Antennas and Wireless Propagation Letters

Design of high data rate, low power and efficient S-band transmitter for Aalto-1 nanosatellite mission

Jaakko Jussila, Said Cheikh, J. Holopainen, M. Lankinen, A. Kestilä, J. Praks, M. Hallikainen 2013 2nd IAA Conference on University Satellite Missions and CubeSat Workshop, Rome, Italy, February 3-9, 2013

Optimal Dual-Antenna Design in a Small Terminal Multi-Antenna System

Robert Martens, Jari Holopainen, Janne Ilvonen, Dirk Manteuffel 2013 IEEE Antennas and Wireless Propagation Letters

Effect of Ground Plane Bending on Mobile Terminal Antenna Performance

Kimmo Rasilainen, Janne Ilvonen, Jari Holopainen, Risto Valkonen, Antti V. Räisänen 2013 7th European Conference on Antennas and Propagation (EuCAP 2013), Gothenburg, Sweden, April 8-12, 2013

Antennas for Digital Television Receivers in Mobile Terminals

Pertti Vainikainen, Jari Holopainen, Mikko Kyrö 2012 Proceedings of the IEEE

Reducing the Interaction Between User and Mobile Terminal Antenna Based on Antenna Shielding

Janne Ilvonen, Risto Valkonen, Jari Holopainen, Outi Kivekäs, Pertti Vainikainen 2012 EUCAP 6th European Conference on Antennas and Propagation (EuCAP 2012), Prague, Czech Republic, March 26-30, 2012

Study on the Minimum Required Size of the Low-Band Cellular Antenna in Variable-Sized Mobile Terminals

Jari Holopainen, Janne Ilvonen, Risto Valkonen, Azremi Bin Abdullah Al-Hadi, Pertti Vainikainen 2012 EUCAP 6th European Conference on Antennas and Propagation (EuCAP 2012), Prague, Czech Republic, March 26-30, 2012

Influence of the user's hand on mutual coupling of dual-antenna structures on mobile terminal

Azremi Bin Abdullah Al-Hadi, Janne Ilvonen, Chung-Huan Li, Jari Holopainen, Pertti Vainikainen 2012 EUCAP 6th European Conference on Antennas and Propagation (EuCAP 2012), Prague, Czech Republic, March 26-30, 2012

Coupling Element Based Dual-Antenna Structures with Hand Effects

Azremi Bin Abdullah Al-Hadi, Janne Ilvonen, Risto Valkonen, Jari Holopainen, Outi Kivekäs, Clemens Icheln, Pertti Vainikainen 2011 International Journal of Wireless Information Networks

Effect of the User's Hands on the Operation of Lower UHF-Band Mobile Terminal Antennas: Focus on Digital Television Receiver

Jari Holopainen, Outi Kivekäs, Janne Ilvonen, Risto Valkonen, Clemens Icheln, Pertti Vainikainen 2011 IEEE Transactions on Electromagnetic Compatibility

Isolation Improvement Method for Mobile Terminal Antennas at Lower UHF Band

Janne Ilvonen, Outi Kivekäs, Azremi Bin Abdullah Al-Hadi, Risto Valkonen, Jari Holopainen, Pertti Vainikainen 2011 EUCAP 5th European Conference on Antennas and Propagation (EuCAP 2011), Rome, Italy, Apr. 11-15, 2011

Mobile Terminal Antenna Performance With the User's Hand: Effect of Antenna Dimensioning and Location

Janne Ilvonen, Outi Kivekäs, Jari Holopainen, Risto Valkonen, Kimmo Rasilainen, Pertti Vainikainen 2011 IEEE Antennas and Wireless Propagation Letters

Capacitive-Sensor-Induced Losses in 900-, 1800-, and 1900-MHz Antennas

Sami Myllymäki, Risto Valkonen, Jari Holopainen, Arttu Huttunen, Vamsi K. Palukuru, Markus Berg, Heli Jantunen, Erkki Salonen 2011 IEEE Antennas and Wireless Propagation Letters

Avoiding the interaction between hand and capacitive coupling element based mobile terminal antenna

Risto Valkonen, Janne Ilvonen, Kimmo Rasilainen, Jari Holopainen, Clemens Icheln, Pertti Vainikainen 2011 EUCAP5th European Conference on Antennas and Propagation (EuCAP 2011), Rome, Italy, Apr. 11-15, 2011

Balanced Antenna Structures of Mobile Terminals

Janne Ilvonen, Jari Holopainen, Outi Kivekäs, Risto Valkonen, Clemens Icheln, Pertti Vainikainen 2010 EUCAP The 4th European Conference on Antennas and Propagation (EuCAP 2010), Barcelona, Spain, April 12-16, 2010

Compensation of finger effect on a mobile terminal antenna by antenna selection

Risto Valkonen, Sami Myllymäki, Arttu Huttunen, Jari Holopainen, Janne Ilvonen, Pertti Vainikainen, Heli Jantunen 2010 ICEAA 2010 International Conference on Electromagnetics in Advanced Applications (ICEAA'10 Offshore), Sydney, Australia, September 20-24, 2010

Frequency-Reconfigurable Mobile Terminal Antenna with MEMS Switches

Risto Valkonen, Cyril Luxey, Jari Holopainen, Clemens Icheln, Pertti Vainikainen 2010 EUCAP The 4th European Conference on Antennas and Propagation (EuCAP 2010), Barcelona, Spain, April 12-16, 2010

Internal Broadband Antennas for Digital Television Receiver in Mobile Terminals

Jari Holopainen, Outi Kivekäs, Clemens Icheln, Pertti Vainikainen 2010 IEEE Transactions on Antennas and Propagation

Broadband Equivalent Circuit Model for Capacitive Coupling ElementBased Mobile Terminal Antenna

Jari Holopainen, Risto Valkonen, Outi Kivekäs, Janne Ilvonen, Pertti Vainikainen 2010 IEEE Antennas and Wireless Propagation Letters

Performance Analysis of Broadband Coupling Element-Based Multiantenna Structure for Mobile Terminal with Hand Effects

Azremi Bin Abdullah Al-Hadi, Janne Ilvonen, Risto Valkonen, Jari Holopainen, Outi Kivekäs, Clemens Icheln, Pertti Vainikainen 2010 PIMRC The 21st IEEE Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC 2010), Istanbul, Turkey, September 26-30, 2010

Equivalent Circuit Model-Based Approach on the User Body Effect of a Mobile Terminal Antenna

Jari Holopainen, Risto Valkonen, Outi Kivekäs, Janne Ilvonen, L Martinez, J R Kelly, P S Hall 2010 IEEE Loughborough Antennas and Propagation Conference (LAPC), Loughborough, United Kingdom, November 8-9, 2010

Recent advances in coupling-based antenna structures for mobile terminals

Jari Holopainen, Risto Valkonen, Clemens Icheln, Outi Kivekäs, Pertti Vainikainen 2009 iWAT 2009 IEEE International Workshop on Antenna Technology, Santa Monica, California, USA, March 2-4, 2009

More than 20 antenna elements in future mobile phones, threat or opportunity?

Pertti Vainikainen, Jari Holopainen, Clemens Icheln, Outi Kivekäs, Mikko Kyrö, M. Mustonen, Sylvain Ranvier, Risto Valkonen, J. Villanen 2009 3rd European Conference on Antennas and Propagation (EuCap 2009), Berlin, Germany, March 23-27, 2009

Effects of nearby metallic patches on an antenna based on segmented mobile terminal chassis

Risto Valkonen, Juho Poutanen, Jari Holopainen, Clemens Icheln, Pertti Vainikainen 2009 3rd European Conference on Antennas and Propagation (EuCap 2009), Berlin, Germany, March 23-27, 2009

Near-Field Control of Handset Antennas Based on Inverted-Top Wavetraps: Focus on Hearing-Aid Compatibility

Jari Holopainen, Janne Ilvonen, Outi Kivekäs, Risto Valkonen, Clemens Icheln, Pertti Vainikainen 2009 IEEE Antennas and Wireless Propagation Letters

Mobile terminal antennas implemented using optimized direct feed

Jari Holopainen, Juha Villanen, Risro Valkonen, Juho Poutanen, Outi Kivekäs, Clemens Icheln, Pertti Vainikainen 2009 iWAT 2009 IEEE International Workshop on Antenna Technology, Santa Monica, California, USA, March 2-4, 2009

A Five-element inverted-F antenna array for MIMO communication and radio direction finding on a mobile terminal

Azremi Bin Abdullah Al-Hadi, Mikko Kyrö, Janne Ilvonen, Jari Holopainen, Sylvain Ranvier, Clemens Icheln, Pertti Vainikainen 2009

Minimization on power loss and distortion in a tuning circuit for a mobile terminal antenna

Risto Valkonen, Jari Holopainen, Clemens Icheln, Pertti Vainikainen 2008 International Symposium on Antennas and Propagation (ISAP 2008), Taipei, Taiwan, 27-30 October, 2008

User effect of antennas for handheld DVB terminal

Jari Holopainen, Juho Poutanen, Clemens Icheln, Pertti Vainikainen 2007 2007 International Conference on Electromagnetics in advanced applications (ICEAA'07), Torino, Italy, September 17-21, 2007

Development trends of small antennas for mobile terminals

Pertti Vainikainen, Juha Villanen, Jari Holopainen, Clemens Icheln 2007 IEEE AP-S International Symposium 2007, Honolulu, Hawaii, USA, June 10-15, 2007

Broadband tuning of mobile terminal antennas

Risto Valkonen, Jari Holopainen, Clemens Icheln, Pertti Vainikainen 2007 European Conference on Antennas and Propagation (EuCAP07), Edinburgh, UK, November 11-16, 2007

Antenna for handheld DVB terminal

Jari Holopainen, Juha Villanen, Mikko Kyrö, Clemens Icheln, Pertti Vainikainen 2006 iWAT 2006 Small Antennas and Novel Metamaterials, New York, USA, March 6-8, 2006

Mobile terminal antennas implemented by using direct coupling

Jari Holopainen, Juha Villanen, Clemens Icheln, Pertti Vainikainen 2006 The first European Conference on Antennas and Propagation 2006 (EuCAP06), Nice, France, November 6-10, 2006

Antennas for multi-system mobile terminals

Pertti Vainikainen, Juha Villanen, Jari Holopainen, Outi Kivekäs, Pasi Suvikunnas, Kati Sulonen 2005 11th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM 2005), Saint-Malo, France, June 15-17, 2005

Mobile Broadband Antennas

Juha Villanen, Jari Holopainen, Outi Kivekäs, Pertti Vainikainen 2005 XXVIIIth General Assembly of URSI, New Delhi, India, Octoberr22-29, 2005