Bumman Kim

发表

Jeonghyeon Cha, Jaehyok Yi, Bumman Kim, 2004, IEEE Transactions on Microwave Theory and Techniques.

Bumman Kim, Huijung Kim, Hyejeong Song, 2008, IEEE Microwave and Wireless Components Letters.

Bumman Kim, Kyungho Lee, Jehyung Yoon, 2005, 2005 IEEE Radio Frequency integrated Circuits (RFIC) Symposium - Digest of Papers.

Bumman Kim, Bonghyuk Park, Seunghoon Jee, 2013, 2013 Asia-Pacific Microwave Conference Proceedings (APMC).

Bumman Kim, Seonghan Ryu, Huijung Kim, 2003 .

Bumman Kim, Changjoon Park, Jehyung Yoon, 2009, 2009 IEEE International Conference on Microwaves, Communications, Antennas and Electronics Systems.

Bumman Kim, Ildu Kim, Bumman Kim, 2010, 2010 IEEE MTT-S International Microwave Symposium.

Bumman Kim, Tae Moon Roh, Youngsik Kim, 1997, 1997 27th European Microwave Conference.

Bumman Kim, Jaesup Lee, Hankyu Lee, 2016, IEEE Transactions on Microwave Theory and Techniques.

Bumman Kim, Seonghan Ryu, Huijung Kim, 2002, 2002 32nd European Microwave Conference.

Bumman Kim, Junghwan Moon, Jungjoon Kim, 2011, 2011 10th International Conference on Telecommunication in Modern Satellite Cable and Broadcasting Services (TELSIKS).

Bumman Kim, Huijung Kim, Jinsung Choi, 2006 .

Bumman Kim, Junghwan Moon, Juyeon Lee, 2011, 2011 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems (COMCAS 2011).

Bumman Kim, Junghwan Moon, Young Yun Woo, 2009, 2009 European Microwave Conference (EuMC).

Jihoon Kim, Bumman Kim, Byungjoon Park, 2017, 2017 IEEE Radio Frequency Integrated Circuits Symposium (RFIC).

Bumman Kim, Dongsu Kim, Jooseung Kim, 2013, IEEE Microwave Magazine.

Jangheon Kim, Bumman Kim, Jong Sung Lee, 2007, 2007 European Microwave Conference.

Bumman Kim, Boshi Jin, Junghwan Moon, 2010, 2010 International Conference on Microwave and Millimeter Wave Technology.

Bumman Kim, Sangsu Jin, Dongsu Kim, 2014, 2014 IEEE MTT-S International Microwave Symposium (IMS2014).

Bumman Kim, Seunghoon Jee, Juyeon Lee, 2014 .

Bumjae Shin, Jeonghyeon Cha, Bumman Kim, 2003 .

Bumman Kim, Sangsu Jin, Hong-Teuk Kim, 2008, 2008 IEEE Radio Frequency Integrated Circuits Symposium.

Jangheon Kim, Bumman Kim, Junghwan Moon, 2012, IEEE Transactions on Microwave Theory and Techniques.

Jaehyok Yi, Bumman Kim, Youngoo Yang, 2001, 2001 IEEE MTT-S International Microwave Sympsoium Digest (Cat. No.01CH37157).

Bumman Kim, Junghwan Moon, Ildu Kim, 2009, IEEE Microwave and Wireless Components Letters.

Bumman Kim, Marco Pirola, Yunsung Cho, 2015, IEEE Transactions on Microwave Theory and Techniques.

Bumman Kim, Junghwan Moon, Seunghoon Jee, 2011, 2011 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems (COMCAS 2011).

Bumman Kim, Young Sik Kim, Woonyun Kim, 1996, 1996 IEEE MTT-S International Microwave Symposium Digest.

Bumman Kim, Huijung Kim, Hyejeong Song, 2008, IEEE Transactions on Microwave Theory and Techniques.

Bumjae Shin, Jeonghyeon Cha, Bumman Kim, 2003, IEEE MTT-S International Microwave Symposium Digest, 2003.

Bumman Kim, Sangsu Jin, Dongsu Kim, 2015, 2015 IEEE International Solid-State Circuits Conference - (ISSCC) Digest of Technical Papers.

Jeonghyeon Cha, Jaehyok Yi, Bumman Kim, 2002, 2002 3rd International Conference on Microwave and Millimeter Wave Technology, 2002. Proceedings. ICMMT 2002..

Bumman Kim, Hankyu Lee, Seokwon Lee, 2016, IEEE Microwave and Wireless Components Letters.

Bumman Kim, Daekyu Yu, Joongjin Nam, 2007, 2006 Asia-Pacific Microwave Conference.

Bumman Kim, Junghwan Moon, Seunghoon Jee, 2011, 2011 IEEE MTT-S International Microwave Symposium.

Bumman Kim, 2012, 2012 Asia Pacific Microwave Conference Proceedings.

Bumman Kim, Daekyu Yu, Kyoungjoon Min, 2006 .

Bumman Kim, Junghwan Moon, Seunghoon Jee, 2011, 2011 6th European Microwave Integrated Circuit Conference.

Jangheon Kim, Bumman Kim, Sungwoo Kim, 2006 .

Bumman Kim, Youngoo Yang, Sungmin Ock, 2000, 2000 30th European Microwave Conference.

Jeonghyeon Cha, Jaehyok Yi, Bumman Kim, 2002, 2002 IEEE MTT-S International Microwave Symposium Digest (Cat. No.02CH37278).

Bumman Kim, Jooseung Kim, Yunsung Cho, 2016, 2016 IEEE MTT-S International Microwave Symposium (IMS).

Bumman Kim, Byungjoon Park, Kyunghoon Moon, 2012 .

Bumman Kim, Junghwan Moon, Seunghoon Jee, 2010, International Journal of Microwave and Wireless Technologies.

Bumman Kim, Ah-Ram Suh, Youngseok Suh, 1994 .

Bumman Kim, Changjoon Park, Jehyung Yoon, 2012, IEEE Journal of Solid-State Circuits.

Jangheon Kim, Jeonghyeon Cha, Bumman Kim, 2004, 2004 IEEE MTT-S International Microwave Symposium Digest (IEEE Cat. No.04CH37535).

Bumman Kim, 2017, 2017 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT).

Bumman Kim, Jongchan Kang, A. Hajimiri, 2006, 2006 IEEE International Solid State Circuits Conference - Digest of Technical Papers.

Bumman Kim, Jongchan Kang, Daekyu Yu, 2006, IEEE Microwave and Wireless Components Letters.

Bumman Kim, Sangsu Jin, Dongsu Kim, 2014, IEEE Transactions on Microwave Theory and Techniques.

Bumman Kim, Woonyun Kim, Sanghoon Kang, 2001 .

Bumman Kim, Sangsu Jin, Jongjin Park, 2015, IEEE Microwave and Wireless Components Letters.

Bumman Kim, Sangsu Jin, Byungjoon Park, 2013, IEEE Transactions on Microwave Theory and Techniques.

Bumman Kim, Sangsu Jin, Yunsung Cho, 2014, 2014 IEEE Topical Conference on Power Amplifiers for Wireless and Radio Applications (PAWR).

Jangheon Kim, Bumman Kim, Slim Boumaiza, 2009, 2009 European Microwave Conference (EuMC).

Bumman Kim, Jin-Ho Shin, Joongjin Nam, 2005 .

Jangheon Kim, Bumman Kim, Ildu Kim, 2008, 2008 IEEE International Symposium on Circuits and Systems.

Jangheon Kim, Jeonghyeon Cha, Bumman Kim, 2006, IEEE Microwave and Wireless Components Letters.

Bumman Kim, 2014, Technical Papers of 2014 International Symposium on VLSI Design, Automation and Test.

Bumman Kim, Bonghyuk Park, Seunghoon Jee, 2015, IEEE Microwave and Wireless Components Letters.

Bumman Kim, Hee-Ran Ahn, Jungjoon Kim, 2008, 2008 Asia-Pacific Microwave Conference.

Jangheon Kim, Bumman Kim, Changjoon Park, 2010, IEEE Transactions on Circuits and Systems I: Regular Papers.

Bumman Kim, Boshi Jin, Junghwan Moon, 2012, IEEE Transactions on Microwave Theory and Techniques.

Bumman Kim, Yunsung Cho, Byungjoon Park, 2013, 2013 IEEE International Wireless Symposium (IWS).

Bumman Kim, 2013, 2013 IEEE International Wireless Symposium (IWS).

Bumman Kim, Hee-Ran Ahn, 2008, 2008 IEEE MTT-S International Microwave Workshop Series on Art of Miniaturizing RF and Microwave Passive Components.

Jaehyok Yi, Bumman Kim, Youngoo Yang, 2003, IEEE MTT-S International Microwave Symposium Digest, 2003.

Bumman Kim, Huijung Kim, Changjoon Park, 2005, The European Conference on Wireless Technology, 2005..

Bumman Kim, Anthony M. Pavio, D. L. Peterson, 1984 .

Bumman Kim, Jooseung Kim, Yunsung Cho, 2015, 2015 10th European Microwave Integrated Circuits Conference (EuMIC).

Bumman Kim, Junghwan Moon, Ildu Kim, 2010, IEEE Microwave Magazine.

Bumman Kim, Jinsung Choi, Ildu Kim, 2007, 2007 8th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Services.

Jangheon Kim, Jeonghyeon Cha, Bumman Kim, 2006, 2006 European Microwave Conference.

Bumman Kim, Junghwan Moon, Seokhyeon Kim, 2017, IEEE Microwave and Wireless Components Letters.

Bumman Kim, Jooseung Kim, Yunsung Cho, 2016, 2016 IEEE MTT-S International Microwave Symposium (IMS).

Bumman Kim, Dongsu Kim, Jooseung Kim, 2015, IEEE Transactions on Circuits and Systems I: Regular Papers.

Bumman Kim, Junghwan Moon, Seunghoon Jee, 2010, The 40th European Microwave Conference.

Jangheon Kim, Jeonghyeon Cha, Bumman Kim, 2006, 2006 International Workshop on Integrated Nonlinear Microwave and Millimeter-Wave Circuits.

Bumman Kim, Youngoo Yang, Joongjin Nam, 2000, 2000 IEEE MTT-S International Microwave Symposium Digest (Cat. No.00CH37017).

Bumman Kim, Sangsu Jin, Jongjin Park, 2013, 2013 Asia-Pacific Microwave Conference Proceedings (APMC).

Bumman Kim, Ildu Kim, Junghwan Son, 2013, IEEE Microwave and Wireless Components Letters.

Bumman Kim, Juyeon Lee, J. K. Son, 2014 .

Bumman Kim, Sangsu Jin, Byungjoon Park, 2015 .

Jangheon Kim, Bumman Kim, Junghwan Moon, 2011, IEEE Transactions on Microwave Theory and Techniques.

Jangheon Kim, Jeonghyeon Cha, Bumman Kim, 2005, 2005 European Microwave Conference.

Bumman Kim, Hyejeong Song, Changjoon Park, 2009, International Journal of Microwave and Wireless Technologies.

Jangheon Kim, Bumman Kim, Fadhel M. Ghannouchi, 2006, 2006 Canadian Conference on Electrical and Computer Engineering.

Bumman Kim, Juyeon Lee, Kyunghoon Moon, 2016, 2016 11th European Microwave Integrated Circuits Conference (EuMIC).

Bumman Kim, Yunsung Cho, Seunghoon Jee, 2015, 2015 IEEE MTT-S International Microwave Symposium.

Bumman Kim, Sangsu Jin, Junghwan Moon, 2014, IEEE Microwave and Wireless Components Letters.

Bumman Kim, Jong-Ryul Lee, Sungmin Ock, 2002, 2002 IEEE MTT-S International Microwave Symposium Digest (Cat. No.02CH37278).

Bumman Kim, Sanghoon Kang, Byounggi Choi, 2002, 2002 IEEE MTT-S International Microwave Symposium Digest (Cat. No.02CH37278).

Bumman Kim, Junghwan Moon, Juyeon Lee, 2011, IEEE Transactions on Microwave Theory and Techniques.

Bumman Kim, Jooseung Kim, Yunsung Cho, 2016, IEEE Transactions on Microwave Theory and Techniques.

Bumman Kim, Sanghoon Kang, 2003, IEEE MTT-S International Microwave Symposium Digest, 2003.

Bumman Kim, Anthony M. Pavio, Mark A. Smith, 1986, 1986 IEEE MTT-S International Microwave Symposium Digest.

Bumman Kim, Sangsu Jin, Dongsu Kim, 2013, 2013 IEEE MTT-S International Microwave Symposium Digest (MTT).

Jangheon Kim, Bumman Kim, Junghwan Moon, 2008, IEEE Transactions on Microwave Theory and Techniques.

Bumman Kim, Anthony M. Pavio, Mark A. Smith, 1986 .

Bumman Kim, Junghwan Moon, Seunghoon Jee, 2010, IEEE Transactions on Microwave Theory and Techniques.

Bumman Kim, Youngwoong Kim, Joongjin Nam, 2004, 34th European Microwave Conference, 2004..

Bumman Kim, Bonghyuk Park, Seunghoon Jee, 2013, 2013 Asia-Pacific Microwave Conference Proceedings (APMC).

Bumman Kim, Yunsung Cho, 2016, 2016 IEEE MTT-S International Microwave Symposium (IMS).

Bumman Kim, Kichon Han, 2008, IEEE Microwave and Wireless Components Letters.

Bumman Kim, Heesong Seo, Inyoung Choi, 2013, IEEE Journal of Solid-State Circuits.

Bumman Kim, Junghwan Moon, Seunghoon Jee, 2011, 2011 6th European Microwave Integrated Circuit Conference.

Bumman Kim, Seunghoon Jee, Juyeon Lee, 2015, 2015 IEEE MTT-S International Microwave Symposium.

Bumman Kim, Junghwan Moon, Jungjoon Kim, 2010, IEEE Transactions on Microwave Theory and Techniques.

Bumman Kim, Youngoo Yang, Young Yun Moo, 2000, ICMMT 2000. 2000 2nd International Conference on Microwave and Millimeter Wave Technology Proceedings (Cat. No.00EX364).

Bumman Kim, Dongsu Kim, Jooseung Kim, 2012, 2012 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT).

Bumman Kim, Hee-Ran Ahn, Bumman Kim, 2007 .

Bumman Kim, 2010, The 2010 International Conference on Advanced Technologies for Communications.

Bumman Kim, Jinsung Choi, Jingook Kim, 2007, 2007 IEEE/MTT-S International Microwave Symposium.

Jaehyok Yi, Bumman Kim, Youngoo Yang, 2000, 2000 IEEE MTT-S International Microwave Symposium Digest (Cat. No.00CH37017).

Bumman Kim, Young Yun Woo, Jae Hyok Yi, 2004 .

Jeonghyeon Cha, Jaehyok Yi, Bumman Kim, 2001, 58th ARFTG Conference Digest.

Bumman Kim, Daekyu Yu, Joongjin Nam, 2006, 2007 IEEE Radio and Wireless Symposium.

Bumman Kim, Sangwook Nam, Sang-Gug Lee, 2012, 2012 IEEE International Symposium on Circuits and Systems.

Jangheon Kim, Bumman Kim, Junghwan Moon, 2009, IEEE Microwave Magazine.

Jaehyok Yi, Bumman Kim, Youngoo Yang, 2001, 2001 IEEE MTT-S International Microwave Sympsoium Digest (Cat. No.01CH37157).

Bumman Kim, Changjoon Park, Jehyung Yoon, 2009, 2009 IEEE Radio Frequency Integrated Circuits Symposium.

Bumman Kim, Junghwan Moon, Seunghoon Jee, 2012, 2012 IEEE/MTT-S International Microwave Symposium Digest.

Bumman Kim, J. Staudinger, M. Eron, 2011, IEEE Microwave Magazine.

Jangheon Kim, Bumman Kim, Young Yun Woo, 2007, 2007 IEEE/MTT-S International Microwave Symposium.

Jangheon Kim, Bumman Kim, Junghwan Moon, 2008, IEEE Transactions on Microwave Theory and Techniques.

Jaehyok Yi, Bumman Kim, J. Kim, 2007, IEEE Transactions on Microwave Theory and Techniques.

Jangheon Kim, Bumman Kim, Junghwan Moon, 2010, IEEE Microwave and Wireless Components Letters.

Bumman Kim, Jeong-Cheol Lee, Jin-Ho Shin, 2012 .

Bumman Kim, Youngoo Yang, Young Yun Woo, 2001, 2001 IEEE MTT-S International Microwave Sympsoium Digest (Cat. No.01CH37157).

Jangheon Kim, Jaehyok Yi, Bumman Kim, 2007, 2007 IEEE/MTT-S International Microwave Symposium.

Bumman Kim, Kichon Han, Daekyu Yu, 2006, IEEE Radio Frequency Integrated Circuits (RFIC) Symposium, 2006.

Bumman Kim, Inyoung Choi, Bumman Kim, 2013, 2013 IEEE Radio Frequency Integrated Circuits Symposium (RFIC).

Jaehyok Yi, Bumman Kim, Youngoo Yang, 2002, 2002 IEEE MTT-S International Microwave Symposium Digest (Cat. No.02CH37278).

Jangheon Kim, Bumman Kim, Junghwan Moon, 2011, IEEE Transactions on Microwave Theory and Techniques.

Bumman Kim, Junghwan Moon, Ildu Kim, 2014, IEEE Microwave and Wireless Components Letters.

Bumman Kim, C. Fager, P. Saad, 2012, 2012 7th European Microwave Integrated Circuit Conference.

Bumman Kim, Changjoon Park, Jehyung Yoon, 2011, 2011 IEEE Radio Frequency Integrated Circuits Symposium.

Bumman Kim, Ildu Kim, Sungchul Hong, 2007, 2007 European Microwave Conference.

Jangheon Kim, Bumman Kim, Junghwan Moon, 2008, IEEE Microwave and Wireless Components Letters.

Amir Galehdar, Bumman Kim, Tom Dhaene, 2014 .

Bumman Kim, Jongwoo Lee, Jinho Shin, 2004, 2004 IEEE MTT-S International Microwave Symposium Digest (IEEE Cat. No.04CH37535).

Bumman Kim, Seunghoon Jee, Jungjoon Kim, 2013, IEEE Transactions on Microwave Theory and Techniques.

Bumman Kim, Junghwan Moon, Juyeon Lee, 2012, IEEE Microwave Magazine.

Bumman Kim, Seunghoon Jee, Cheol Ho Kim, 2014, IEEE Microwave and Wireless Components Letters.

Jangheon Kim, Bumman Kim, Myoungsu Jun, 2007 .

Bumman Kim, Sanghoon Kang, 2003, IEEE Radio Frequency Integrated Circuits (RFIC) Symposium, 2003.

Bumman Kim, Sangsu Jin, Byungjoon Park, 2013, IEEE Transactions on Microwave Theory and Techniques.

Bumman Kim, Sangsu Jin, Byungjoon Park, 2015 .

Bumman Kim, Junghwan Moon, J. Moon, 2011, IEEE Transactions on Microwave Theory and Techniques.

Bumman Kim, Jin-Ho Shin, Yujin Chung, 1996, 1996 IEEE MTT-S International Microwave Symposium Digest.

Jeonghyeon Cha, Bumman Kim, Junghwan Moon, 2011, 2011 6th European Microwave Integrated Circuit Conference.

Bumman Kim, Bumman Kim, Hee-Ran Ahn, 2009, IEEE Transactions on Microwave Theory and Techniques.

Bumman Kim, Sangsu Jin, Jooseung Kim, 2015, IEEE Microwave and Wireless Components Letters.

Bumman Kim, Junho Shin, Daechul Jeong, 2017, 2017 10th Global Symposium on Millimeter-Waves.

Bumman Kim, Bumman Kim, Hee-Ran Ahn, 2008, IEEE Microwave Magazine.

Bumman Kim, Daehyun Kang, Jooseung Kim, 2012, 2012 7th European Microwave Integrated Circuit Conference.

Bumman Kim, Sangsu Jin, Hadong Jin, 2013, 2013 IEEE MTT-S International Microwave Symposium Digest (MTT).

Bumman Kim, Daehyun Kang, Jooseung Kim, 2011, 2011 6th European Microwave Integrated Circuit Conference.

Bumman Kim, Sangsu Jin, Jooseung Kim, 2015, 2015 IEEE Radio Frequency Integrated Circuits Symposium (RFIC).

Bumman Kim, Jongchan Kang, Woonyun Kim, 2002 .

Bumman Kim, Kyungho Lee, Kwangsik Choi, 2004, IEDM Technical Digest. IEEE International Electron Devices Meeting, 2004..

Bumman Kim, Joongjin Nam, Bumman Kim, 2007, IEEE Transactions on Microwave Theory and Techniques.

Bumman Kim, Sanghoon Kang, Byounggi Choi, 2002, IMS 2002.

Bumman Kim, Junghwan Moon, Cheol Ho Kim, 2015, IEEE Transactions on Microwave Theory and Techniques.

Bumman Kim, Daehyun Kang, Jooseung Kim, 2013, IEEE Transactions on Microwave Theory and Techniques.

Bumman Kim, Daehyun Kang, Jooseung Kim, 2013, 2013 Asia-Pacific Microwave Conference Proceedings (APMC).

Bumman Kim, Sangsu Jin, Jooseung Kim, 2015, IEEE Microwave and Wireless Components Letters.

Bumman Kim, Sangsu Jin, Jooseung Kim, 2015, IEEE Transactions on Microwave Theory and Techniques.

Bumman Kim, Daehyun Kang, Jooseung Kim, 2013, 2013 European Microwave Integrated Circuit Conference.

Bumman Kim, Jehyung Yoon, Daechul Jeong, 2015, IEEE Microwave and Wireless Components Letters.

Bumman Kim, Jehyung Yoon, Jongchan Kang, 2006, IEEE J. Solid State Circuits.

Bumman Kim, Junghwan Moon, Seokhyeon Kim, 2016, IEEE Microwave and Wireless Components Letters.

Bumman Kim, Junghwan Moon, Seokhyeon Kim, 2016, IEEE Transactions on Microwave Theory and Techniques.

Bumman Kim, Jinsung Choi, Daehyun Kang, 2007, IEEE Transactions on Microwave Theory and Techniques.

Bumman Kim, Byeong-Ha Park, Huijung Kim, 2007, IEEE Microwave and Wireless Components Letters.

Jeonghyeon Cha, Jaehyok Yi, Bumman Kim, 2007, IEEE Transactions on Microwave Theory and Techniques.

Bumman Kim, Junghwan Moon, Junghwan Son, 2012, IEEE Transactions on Microwave Theory and Techniques.

Bumman Kim, Paul Saunier, Hua Quen Tserng, 1989 .

Bumman Kim, Woonyun Kim, Young-Sik Kim, 1997 .

Bumman Kim, Daehyun Kang, Jooseung Kim, 2012, 2012 IEEE/MTT-S International Microwave Symposium Digest.

Bumman Kim, Kyungho Lee, Jehyung Yoon, 2005, 2005 IEEE Radio Frequency integrated Circuits (RFIC) Symposium - Digest of Papers.

Bumman Kim, Bumman Kim, Hee-Ran Ahn, 2006, IEEE Microwave and Wireless Components Letters.

Bumman Kim, Sangsu Jin, Daehyun Kang, 2016, IEEE Transactions on Microwave Theory and Techniques.

Bumman Kim, Huijung Kim, Jinsung Choi, 2005, 2005 IEEE Radio Frequency integrated Circuits (RFIC) Symposium - Digest of Papers.

Bumman Kim, Paul Saunier, Hua Quen Tserng, 1984 .

Bumman Kim, Junghwan Moon, Ildu Kim, 2007, 2007 IEEE/MTT-S International Microwave Symposium.

Bumman Kim, Daehyun Kang, Jooseung Kim, 2011, 2011 6th European Microwave Integrated Circuit Conference.

Bumman Kim, Woonyun Kim, Youngoo Yang, 2001 .

Bumman Kim, P. Colantonio, F. Giannini, 2012, 2012 7th European Microwave Integrated Circuit Conference.

Bumman Kim, Daehyun Kang, Jooseung Kim, 2015, IEEE Transactions on Microwave Theory and Techniques.

Bumman Kim, Junghwan Moon, Ildu Kim, 2010, 2010 IEEE MTT-S International Microwave Symposium.

Bumman Kim, Sangsu Jin, Jooseung Kim, 2016, IEEE Transactions on Microwave Theory and Techniques.

Bumman Kim, Seokhyeon Kim, Yunsik Park, 2015, IEEE Microwave and Wireless Components Letters.