N
Nobuyasu Takemura
Researcher at Nippon Institute of Technology
Publications - 48
Citations - 283
Nobuyasu Takemura is an academic researcher from Nippon Institute of Technology. The author has contributed to research in topics: Antenna (radio) & Antenna measurement. The author has an hindex of 8, co-authored 43 publications receiving 260 citations. Previous affiliations of Nobuyasu Takemura include Samsung & Mitsubishi.
Papers
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Journal ArticleDOI
Inverted-FL Antenna With Self-Complementary Structure
TL;DR: In this article, an inverted-FL antenna with a self-complementary structure was proposed for mobile-WiMAX applications, which achieved a constant impedance of 188 Omega without attaching a matching load required since a self complementary antenna of an axially symmetric type has constant impedance.
Patent
Microstrip antenna and microstrip antenna substrate
Toru Fukazawa,Shiro Kitao,Shigeru Makino,Hiroyuki Omine,Toru Takahashi,Nobuyasu Takemura,史郎 北尾,裕幸 大嶺,徹 深沢,滋 牧野,暢康 竹村,徹 高橋 +11 more
TL;DR: In this paper, a microstrip antenna is provided with an earth conductor 2, a parasitic conductor 7, a feeding conductor 3 which is laid between the conductors 2 and 7, and a wall-like member 5 which is arranged around an inter-conductor space demarcated by connecting the peripheral edge of the conductor 7 to that of a conductor 3 and made of a dielectric or conductive material.
Proceedings ArticleDOI
Inverted-FL antenna with self-complementary structure
TL;DR: The proposed inverted-FL antenna with a volume of 10 times 10 times 45 mm3 achieves a constant impedance of 188 Omega without attaching a matching load required since a self-complementary antenna of an axially symmetric type has constant impedance.
Patent
Antenna measuring device and antenna measuring method
TL;DR: In this paper, an antenna measuring device and a measuring method capable of measuring precisely excitation amplitudes and phases of each antenna element in consideration of amplitude and phase errors of phase shifters and the amplitude and the phase error of a combined electric field in the operation state of all element antennas.
Journal ArticleDOI
Tunable Inverted-L Antenna With Split-Ring Resonator Structure for Mobile Phones
TL;DR: In this paper, a miniaturized tunable inverted-L antenna with split-ring resonator (SRR) structure was proposed for low frequency LTE700/GSM850/GMS900 bands (698-960 MHz).