Misao Haneishi

Saitama University

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

Alternating-phase fed single-layer slotted waveguide arrays for grating lobe suppression

Yuichi Kimura Ryota Shimizu Misao Haneishi

An alternating-phase fed waveguide array with linear slot arrangement for grating lobe suppression is proposed. An analysis model for estimating the slot coupling is introduced and the S-parameters are obtained by simulation. It is confirmed that the unit slot model using inductive walls realizes enough slot coupling for array design and suppresses the reflection from the slot. Design of the array is left for future study.

Reflection

Slotted waveguide

Waveguide

Main lobe

Side lobe

10.1109/aps.2004.1332074

Cite

Citations (2)

76GHz alternating-phase fed single-layer slotted waveguide arrays with suppressed sidelobes in the E-plane

Yuichi Kimura Masaharu Takahashi Jiro Hirokawa Makoto Ando Misao Haneishi

Sidelobe suppression of the alternating-phase fed array in the E-plane is discussed. The T-junctions for the alternating-phase fed waveguide array are designed for Taylor pattern with sidelobe level of -25dB. The validity of the design of the power divider consisting of T-junctions for sidelobe suppression is confirmed.

Waveguide

Slotted waveguide

10.1109/aps.2003.1220090

Cite

Citations (17)

Inverted triangle printed monopole antenna with halfdisk for UWB applications

Asia-Pacific Microwave Conference (2006)

Ridho Chayono Misao Haneishi Yuichi Kimura

A novel printed monopole antenna for UWB applications is presented in this paper. A monopole with a combination of a half-disk and an inverted triangle is installed on a finite ground plane. A slit on the ground plane performs as an impedance controller to obtain matching over wide frequency range. Impedance bandwidth of more than 1:6 is achieved with VSWR<2. Omni-directional patterns are confirmed by simulation and experiments as well. Excellent gain performance is also achieved by the proposed antenna.

Ground plane

Helical antenna

10.1109/apmc.2006.4429800

Cite

Citations (7)

Broadband CPW-Fed Circular MSA Using Planar Electromagnetic Band-Gap Structure

Ridho Chayono Misao Haneishi Yuichi Kimura

In this paper, we propose a novel stacked circular microstrip antenna (C-MSA) fed by a CPW. The planar EBG structure is used to obtain broadband performance for dual operating frequencies. The bandwidth of 6.73 % and 7.55 % are obtained for the low- and high-frequency bands, respectively. Moreover, broadside radiation patterns and gains of about 8.0 dBi in average are also obtained over the both bandwidths. Due to its performance, the proposed C-MSA fed by a CPW using the planar EBG structure can be considered as an alternative method to obtain a broadband and dual-frequency planar antenna.

Multi-band device

Frequency band

Broadside

Coplanar waveguide

10.1109/iwat.2008.4511378

Cite

Citations (2)

Radiation properties of microstrip array antenna fed by radial line

Misao Haneishi Shota Saito

The authors present an array antenna which excites a singly fed circularly polarized microstrip antenna via a low-loss radial waveguide. In order to check the performance of this antenna, some planar arrays were fabricated and tested at the SHF band. Satisfactory performance was obtained in both radiation pattern and directivity gain. This type of array demonstrated high-efficiency performance (approximately 90% aperture efficiency). It was confirmed that this type of antenna can be a useful model of a circularly polarized planar antenna.< >

Directivity

Patch antenna

10.1109/aps.1991.174908

Cite

Citations (17)

Design of single-layer multiband circular MSA with half-ring slots

Ridho Chayono Yuichi Kimura Misao Haneishi

In order to design an antenna in planar construction and suitability for integration with active or passive elements of the RF substrate board, we present a single-layer multiband circular MSA with half-ring slots fed by a coplanar gap coupled. Three half-ring slots are assumed and hence four resonant frequencies are accomplished in the frequency range of 3.0-8.0 GHz, as expected. Gains in the range of 3.0-7.0 dBi are also confirmed. Experimental results show good agreement with those estimated by IE3D simulator. Therefore, this antenna can be considered as an alternative design for multiband planar antenna.

10.1109/aps.2007.4545896

Cite

Citations (3)

B-1-68 Modified Equilateral Triangle Microstrip Antenna(B-1. アンテナ・伝播B(アンテナ一般), 通信1)

電子情報通信学会総合大会講演論文集 (2005)

Ridho Chayono Yuichi Kimura Misao Haneishi

Equilateral triangle

Source

Cite

Citations (0)

B-1-109 A CPW-Fed Circular MSA with Half-ring Slots for Multiband Operation

電子情報通信学会総合大会講演論文集 (2007)

Ridho Chayono Yuichi Kimura Misao Haneishi

Source

Cite

Citations (0)

Beam shaping of a microstrip array antenna fed by a dogbone slot

Hiroki Ito Yuichi Kimura Misao Haneishi

The performance of a new type of shaped-beam planar array composed of microstrip antennas was investigated in this study. The basic techniques for the design of an array are also presented in this paper. Several shaped-beam planar arrays were fabricated and tested at the C-band to estimate the performance of the arrays. The results of experiment showed that the test arrays have excellent performance in terms of both radiation patterns and impedance characteristics. This type of array is therefore thought to be an effective model for a shaped-beam low-profile array.

Beam pattern

Reflective array antenna

10.1109/icmmt.2002.1187767

Cite

Citations (2)

L-probe fed multiband microstrip antennas with slots

Asia-Pacific Microwave Conference (2006)

Carlota Salamat Misao Haneishi Yuichi Kimura

Adding a U-slot has been found to increase the overall bandwidth of microstrip antenna (MSA). Previous studies focus on broadband operation implemented on slightly thicker substrate using coaxial feeding system. For this paper, the design of a multiband microstrip antenna with U-slots fed by Lprobe in thin substrate is presented. The multiband operation is achieved by adding multiple U-slots on typical MSA. The L-probe feeding system provides good return loss characteristics on multiple frequencies. The relationship between key antenna dimensions and overall antenna characteristics are investigated. A test antenna with three U-slots exhibits good antenna characteristics on multiple frequencies. Also, a modified model to U-slot MSA is also presented by varying the slot geometry.

Return loss

Patch antenna

10.1109/apmc.2006.4429694

Cite

Citations (11)