Search Results - "Nishiyama, Eisuke"

A phase shift keying modulator integrated single‐feed circular polarization agile array antenna by Phyoe, Thet Paing, Hasan, Maodudul, Nishiyama, Eisuke, Toyoda, Ichihiko

“…This paper proposes a novel design of a circular polarization agile array antenna using two phase shift keying (PSK) modulators. The proposed antenna includes…”
Get full text

A Dual-Axis Wide-Beam Microstrip Patch Antenna Using Linear Parasitic Line Elements by Hasan, Maodudul, Nishiyama, Eisuke, Toyoda, Ichihiko

“…This study presents a low-profile dual-axis wide-beam patch antenna. The antenna has a multi-layer structure that includes a microstrip patch antenna and four…”
Get full text

A Single-Layer Planar Array Antenna Using Circularly-Polarized Reconfigurable Elements for Conical-Beam Radiation by Htun, Htet Wai, Nishiyama, Eisuke, Toyoda, Ichihiko

“…This article proposes a novel planar array antenna for reconfigurable circular polarization (CP) with conical-beam radiation. The array consists of four…”
Get full text

An Electrically Reconfigurable Circularly-Polarized Planar Array Antenna With Built-In Bias-Isolation Mechanism by Htun, Htet Wai, Nishiyama, Eisuke, Toyoda, Ichihiko

“…This paper proposes a novel design of a reconfigurable microstrip array antenna for circular polarization (CP) switching function. The proposed array is…”
Get full text

A penta‐band microstrip slot antenna for S‐, C‐ and X‐band applications by Rahman, Muhammad Asad, Islam, MD Shahidul, Hossain, MD Shakil, Hasan, Maodudul, Nishiyama, Eisuke, Toyoda, Ichihiko

“…This letter presents a compact penta‐band microstrip slot antenna. The proposed antenna comprises a microstrip feed line on the top plane, a…”
Get full text

A Quad-Polarization and Beam Agile Array Antenna Using Rat-Race Coupler and Switched-Line Phase Shifter by Hasan, Maodudul, Nishiyama, Eisuke, Toyoda, Ichihiko

“…This paper proposes a quad-polarized microstrip array antenna with beam steering capability. The proposed antenna consists of two patch elements, one rat-race…”
Get full text

A novel dual-band elliptical ring slot MIMO antenna with orthogonal circular polarization for 5G applications by Chakraborty, Swarup, Rahman, Muhammad Asad, Hossain, Md. Azad, Nishiyama, Eisuke, Toyoda, Ichihiko

“…This paper presents a dual-band 4-element multiple-input-multiple-output (MIMO) antenna featuring orthogonal circular polarization (CP) for Sub-6 GHz 5G…”
Get full text

A 2.45- and 5.8-GHz Dual-Band Stacked Differential Rectenna With High Conversion Efficiency in Low Power Density Environment by Saito, Kento, Nishiyama, Eisuke, Toyoda, Ichihiko

“…This paper proposes a novel stacked dual-band differential rectenna. The proposed rectenna consists of two rectifying diodes and a dual-band array antenna with…”
Get full text

Polarization agile self‐oscillating active integrated antenna for spatial modulation wireless communications by Toyoda, Ichihiko, Furukawa, Yoshiaki, Nishiyama, Eisuke, Tanaka, Takayuki, Aikawa, Masayoshi

“…This article proposes a new design concept of active integrated array antennas having oscillation and modulation functions for spatial modulation wireless…”
Get full text

Single Layer Extensible Microstrip Array Antenna Integrating SPDT Switch Circuit for Linear Polarization Switching by Ushijima, Yu, Nishiyama, Eisuke, Aikawa, Masayoshi

“…A single layer extensible microstrip array antenna integrating a Single Pole Double Throw (SPDT) switch circuit for linear polarization switching is proposed,…”
Get full text

5.8-GHz Stacked Differential Rectenna Suitable for Large-Scale Rectenna Arrays With DC Connection by Matsunaga, Tatsuki, Nishiyama, Eisuke, Toyoda, Ichihiko

“…In this communication, a novel stacked differential rectenna is proposed and its characteristics are experimentally investigated. The proposed rectenna can…”
Get full text

Parameter Study of Dual-Band Array Antenna for Stacked Differential Rectenna Arrays by Saito, Kento, Nishiyama, Eisuke, Toyoda, Ichihiko

“…This paper proposes a novel concept of a dual-band array antenna to achieve large-scale stacked differential rectenna arrays. The proposed array antenna…”
Get full text

Proposal of Pattern-Reconfigurable Self-Oscillating Active Array Antenna Integrating Slot-Line Gunn Oscillator and Hybrid Coupler by Hasan, Maodudul, Nishiyama, Eisuke, Tanaka, Takayuki, Toyoda, Ichihiko

“…This study proposes a self-oscillating active integrated array antenna (AIAA) with pattern-reconfigurable functionality for X-band applications. The AIA has a…”
Get full text

Three‐state pattern reconfigurable active antenna integrated with Gunn oscillator and switched‐line phase shifter by Hasan, Maodudul, Nishiyama, Eisuke, Tanaka, Takayuki, Toyoda, Ichihiko

“…In this paper, a novel active integrated array antenna (AIAA) is introduced for the purpose of enabling pattern switchable functionality. The AIAA includes a…”
Get full text

A Microstrip-Line Gunn Oscillator Loaded Active Integrated Array Antenna Using Inclined Patches for Polarization Switching Function by Hasan, Maodudul, Nishiyama, Eisuke, Toyoda, Ichihiko

“…A polarization agile active integrated array antenna (AIAA), consisting of a microstrip-line Gunn oscillator loaded with dual-polarized array antenna is…”
Get full text

A first‐harmonic push–push oscillator based active integrated dual‐beam switchable array antenna by Hasan, Maodudul, Nishiyama, Eisuke, Tanaka, Takayuki, Toyoda, Ichihiko

“…This paper proposes a new active integrated array antenna (AIAA) for dual‐beam switchable functionality. The proposed AIAA comprises a first‐harmonic push–push…”
Get full text

A Polarization Switchable Active Array Antenna Integrating a Multiport Oscillator and PSK Modulators by Hasan, Maodudul, Ushiroda, Hiroki, Nishiyama, Eisuke, Toyoda, Ichihiko

“…A polarization switchable active array antenna is newly proposed for spatial modulation applications. The proposed antenna composed of a four-port Gunn…”
Get full text

A wideband dual‐circularly polarized 2 × 1 array antenna using multi‐layer substrate for compact structure by Rahman, Muhammad Asad, Nishiyama, Eisuke, Toyoda, Ichihiko

“…A novel compact dual‐circularly polarized (CP) 2 × 1 microstrip array antenna with wideband characteristic is proposed. The antenna is realized using…”
Get full text

A High Efficiency Differential Rectenna Employing Two-Parasitic-Element Stacked Antenna by Yasuda, Kenta, Nishiyama, Eisuke, Toyoda, Ichihiko

“…In this paper, an improved differential rectenna using a stacked antenna is proposed and its performances are experimentally investigated. The proposed…”
Get full text

5.8-GHz Series/Parallel Connected Rectenna Array Using Expandable Differential Rectenna Units by Sakamoto, Tatsuya, Ushijima, Yu, Nishiyama, Eisuke, Aikawa, Masayoshi, Toyoda, Ichihiko

“…This communication demonstrates series and/or parallel connection of the differential rectenna units. The differential rectenna unit provides high…”
Get full text