Suchergebnisse - "Kazuhide Hirose"

Dual‐loop antennas with an expanded axial ratio bandwidth von Kazuhide Hirose, Koki Nishino, Hisamatsu Nakano

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A dual‐curl antenna with coplanar feedline for sequential rotation von Kazuhide Hirose, Naonoshin Ito, Hisamatsu Nakano

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Dual‐curl antennas for broadband circular polarisation von Kazuhide Hirose, Hisamatsu Nakano, Motoshi Nakatsu

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Sequentially rotated loop and spiral antenna arrays with a coplanar C‐figured feedline von Kazuhide Hirose, Susumu Tsubouchi, Naonoshin Ito, Yuya Urushibata, Hisamatsu Nakano

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Dual-Loop Arrays Fed by Coplanar Parallel Lines for Wideband Circular Polarization von Yuto Kikkawa, Kazuhide Hirose, Hisamatsu Nakano

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Dual‐loop antennas with an expanded axial ratio bandwidth von Hirose, Kazuhide, Nishino, Koki, Nakano, Hisamatsu

“… The authors propose a novel dual‐wire antenna with a balanced feed to increase a 3‐dB axial ratio bandwidth. The antenna comprises loop elements with quasi …”
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Sequentially rotated loop and spiral antenna arrays with a coplanar C‐figured feedline von Hirose, Kazuhide, Tsubouchi, Susumu, Ito, Naonoshin, Urushibata, Yuya, Nakano, Hisamatsu

“… Using the moment method, two array antennas are investigated to reveal the effects of different radiation elements on the array characteristics. Each array …”
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A Fundamental Study on Circularly Polarized Double-Loop Antennas with Quasi-Two Sources von Kazuhide Hirose, Mitsuki Hirose, Shintaro Mita, Hisamatsu Nakano

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Dual-Loop Arrays Fed by Coplanar Parallel Lines for Wideband Circular Polarization von Hirose, Kazuhide, Kikkawa, Yuto, Nakano, Hisamatsu

“… Using the method of moments, we analyze three types of series-fed array antennas for circular polarization. First, we present a reference antenna's radiation …”
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Decoupling and Sequential Array Antennas-Effects of Coplanar Feedline on Radiation Characteristics von Hirose, Kazuhide, Kikkawa, Yuto, Nakano, Hisamatsu

“… Using the method of moments, we investigate two types of circularly polarized loop array antennas with and without a coplanar feedline (CF). The loops and the …”
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A Simultaneous Study on Wire-Loop, Plate-Loop, and Plate Antennas for Wideband Circular Polarization von Hirose, Kazuhide, Hirose, Mitsuki, Nakano, Hisamatsu

“… We investigate three square-shaped antennas to increase the bandwidth of circular polarization. Each antenna has two adjacent corners excited with the same …”
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A Loop-Line Antenna with Enhanced Bandwidth of Circular Polarization von Kazuhide Hirose, Motoshi Nakatsu, Hisamatsu Nakano

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Modified Crossed-Wire Antennas Radiating a Circularly Polarized Conical Beam von Kazuhide Hirose, Kazuhiko Hata, Hisamatsu Nakano

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A Fundamental Study on Circularly Polarized Double-Loop Antennas with Quasi-Two Sources von Hirose, Kazuhide, Hirose, Mitsuki, Mita, Shintaro, Nakano, Hisamatsu

“… Two concentric double-loop antennas were analyzed using the moment method to increase the 3 dB axial ratio bandwidth. Each antenna has a driven loop connected …”
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A New Observation in Decoupling and Sequential Rotation Array Configurations Using Loop Radiation Elements von Hirose, Kazuhide, Nishino, Koki, Nakano, Hisamatsu

“… Using the method of moments, we analyze three array antennas for low cross-polarized radiation. Each antenna comprises two dual-loop elements connected to a …”
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Impedance matching for curl and truncated spiral antennas above the ground plane von Hirose, Kazuhide, Ito, Naonoshin, Nakano, Hisamatsu

“… Curl and truncated spiral antennas are studied for input impedance matching a coaxial line. Each antenna is located at quarter wavelengths above the ground …”
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A New Observation in Spiral and Curl Antenna Configurations above the Ground Plane von Hirose, Kazuhide, Hirukawa, Masayuki, Nakano, Hisamatsu

“… We report here that spiral and curl antennas are essentially the same when using the moment method. This aids in the understanding and design of the two …”
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Bent and Branched Microstrip-Line Antennas for Circular Polarization von Hirose, Kazuhide, Nakamura, Kohei, Nakano, Hisamatsu

“… We analyze three transmission-line antennas using the moment method. Each line antenna comprises a coplanar feed line, loops, and straight segments connecting …”
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Modified Crossed-Wire Antennas Radiating a Circularly Polarized Conical Beam von Hirose, Kazuhide, Nakano, Hisamatsu, Hata, Kazuhiko

“… Two types of modified crossed-wire antennas are investigated to enhance a circularly polarized (CP) wave bandwidth. The wire length of each antenna is …”
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A Loop-Line Antenna with Enhanced Bandwidth of Circular Polarization von Hirose, Kazuhide, Nakano, Hisamatsu, Nakatsu, Motoshi

“… We investigate a circularly polarized (CP) transmission-line antenna composed of loop radiation elements, called a loop-line antenna. To enhance the CP wave …”
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