Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Hidenori Obiya"'
Autor:
Takashi Ogami, Norio Nakajima, Takaya Wada, Hidenori Obiya, Makoto Kawashima, Atsushi Horita, Masayoshi Koshino
Publikováno v:
2016 IEEE MTT-S International Microwave Symposium (IMS).
In recent years, the mobile data traffic is increasing and many more frequency bands have been employed in cellular handsets. A simple π type tunable band elimination filter (BEF) with switching function has been developed using a wideband tunable s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::09e7bd8b86c85c0478141ba4960fc464
https://doi.org/10.1109/mwsym.2016.7540110
https://doi.org/10.1109/mwsym.2016.7540110
Autor:
Masayoshi Koshino, Takaya Wada, Hidenori Obiya, Yusuke Kusumoto, Norio Nakajima, Makoto Kawashima
Publikováno v:
2015 IEEE MTT-S International Microwave Symposium.
A novel 4-port circulator for multi-standard and multi-band cellular handsets has been successfully developed by using the Core-Circulator technique. The circulator is realized with lumped element circuits and a weak magnetic field operation. The ins
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::55fefee505e49dd571476840cbf2a9b2
https://doi.org/10.1109/mwsym.2015.7166921
https://doi.org/10.1109/mwsym.2015.7166921
Autor:
Hidenori Obiya, Hisao Hayafuji, Yusuke Kusumoto, Masayoshi Koshino, Makoto Kawashima, Shinya Hitomi, Norio Nakajima, Takaya Wada
Publikováno v:
2015 IEEE MTT-S International Microwave Symposium.
RF paths in mobile phone have been increasing and the configuration has been becoming a complex year by year. A new tunable RF front-end circuit for a single RF chain architecture was proposed. That solution needs the tunable low RX-band noise power
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::99c38ba842346452eafc6c1ea07fcf20
https://doi.org/10.1109/mwsym.2015.7166919
https://doi.org/10.1109/mwsym.2015.7166919
Autor:
Takaya Wada, Masayoshi Koshino, Reiji Nakajima, Makoto Kawashima, Norio Nakajima, Takashi Ogami, Hidenori Obiya
Publikováno v:
2014 IEEE MTT-S International Microwave Symposium (IMS2014).
A novel miniaturized broadband circulator for reconfigurable mobile handsets has been successfully developed. The circulator operating in a weak magnetic field below ferromagnetic resonance is derived by analyzing the equivalent circuit. The operatin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d50ffb0a8789504700951c9de6c8620
https://doi.org/10.1109/mwsym.2014.6848316
https://doi.org/10.1109/mwsym.2014.6848316
Autor:
Hisao Hayafuji, Hidenori Obiya, Masakazu Tani, Takashi Ogami, Makoto Kawashima, Norio Nakajima, Masayoshi Koshino, Takaya Wada
Publikováno v:
2014 IEEE MTT-S International Microwave Symposium (IMS2014).
A large number of frequency bands have been included in mobile phone handsets and in their RF front end circuit, RF paths have been increasing and the configuration has been becoming a complex more and more. A new tunable RF front-end circuit for sin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8013e62fe2793cd122151da90d02a05
https://doi.org/10.1109/mwsym.2014.6848317
https://doi.org/10.1109/mwsym.2014.6848317
Autor:
Masayoshi Koshino, Masakazu Tani, Katsuhiro Ikada, Takaya Wada, Hidenori Obiya, Norio Nakajima, Makoto Kawashima, Hajime Kando, Takashi Ogami
Publikováno v:
2014 IEEE MTT-S International Microwave Symposium (IMS2014).
A large number of frequency bands have been included in mobile phone handsets and in their RF front end circuit, RF paths have been increasing and the configuration has been becoming complex more and more. A new tunable filter is proposed in this pap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c205160900c485e58a92169157d2fb6
https://doi.org/10.1109/mwsym.2014.6848403
https://doi.org/10.1109/mwsym.2014.6848403