An Active Metamaterial Antenna with MEMS-Modulated Scanning Radiation Beams

Yong Luo; Kazutaka Kikuta; Zhengli Han; Takuya Takahashi; Akira Hirose; Hiroshi Toshiyoshi

doi:10.1109/LED.2016.2565559

An Active Metamaterial Antenna with MEMS-Modulated Scanning Radiation Beams

Yong Luo, Kazutaka Kikuta, Zhengli Han, Takuya Takahashi, Akira Hirose, Hiroshi Toshiyoshi

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

In this letter, for the first time, we report a microelectromechanical system (MEMS)-modulated scanning beam metamaterial antenna based on surface micromachining process. The antenna is implemented by cascading periodical metamaterial modules with a unit length of less than λ_g/5 to make an electromagnetically homogeneous waveguide, of which the MEMS cantilevers are monolithically integrated in each unit as a radio frequency (RF) switch to modulate the phase constant β, and thereby to realize the scanning beams in the fixed frequency around 8 GHz. Experiments that verified the MEMS-modulated scanning radiation beams are tuned from the backward (around -15°) to the broadside (around 0°) and to the forward (around +15°) directions as the RF-MEMS switches are, respectively, actuated from the states of 0000-0000 (switches in all of the eight units are OFF) to 1010-1010 (switches in the unit of numbers 1, 3, 5, and 7 are ON) and to 1111-1111 (all switches are ON).

Original language	English
Article number	7467430
Pages (from-to)	920-923
Number of pages	4
Journal	IEEE Electron Device Letters
Volume	37
Issue number	7
DOIs	https://doi.org/10.1109/LED.2016.2565559
Publication status	Published - 2016 Jul
Externally published	Yes

Keywords

MEMS-modulated scanning beams
RF-MEMS
monolithic integration
surface micromachining process
tunable metamaterial antenna

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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Cite this

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title = "An Active Metamaterial Antenna with MEMS-Modulated Scanning Radiation Beams",

abstract = "In this letter, for the first time, we report a microelectromechanical system (MEMS)-modulated scanning beam metamaterial antenna based on surface micromachining process. The antenna is implemented by cascading periodical metamaterial modules with a unit length of less than λg/5 to make an electromagnetically homogeneous waveguide, of which the MEMS cantilevers are monolithically integrated in each unit as a radio frequency (RF) switch to modulate the phase constant β, and thereby to realize the scanning beams in the fixed frequency around 8 GHz. Experiments that verified the MEMS-modulated scanning radiation beams are tuned from the backward (around -15°) to the broadside (around 0°) and to the forward (around +15°) directions as the RF-MEMS switches are, respectively, actuated from the states of 0000-0000 (switches in all of the eight units are OFF) to 1010-1010 (switches in the unit of numbers 1, 3, 5, and 7 are ON) and to 1111-1111 (all switches are ON).",

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author = "Yong Luo and Kazutaka Kikuta and Zhengli Han and Takuya Takahashi and Akira Hirose and Hiroshi Toshiyoshi",

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AU - Luo, Yong

AU - Kikuta, Kazutaka

AU - Han, Zhengli

AU - Takahashi, Takuya

AU - Hirose, Akira

AU - Toshiyoshi, Hiroshi

PY - 2016/7

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N2 - In this letter, for the first time, we report a microelectromechanical system (MEMS)-modulated scanning beam metamaterial antenna based on surface micromachining process. The antenna is implemented by cascading periodical metamaterial modules with a unit length of less than λg/5 to make an electromagnetically homogeneous waveguide, of which the MEMS cantilevers are monolithically integrated in each unit as a radio frequency (RF) switch to modulate the phase constant β, and thereby to realize the scanning beams in the fixed frequency around 8 GHz. Experiments that verified the MEMS-modulated scanning radiation beams are tuned from the backward (around -15°) to the broadside (around 0°) and to the forward (around +15°) directions as the RF-MEMS switches are, respectively, actuated from the states of 0000-0000 (switches in all of the eight units are OFF) to 1010-1010 (switches in the unit of numbers 1, 3, 5, and 7 are ON) and to 1111-1111 (all switches are ON).

AB - In this letter, for the first time, we report a microelectromechanical system (MEMS)-modulated scanning beam metamaterial antenna based on surface micromachining process. The antenna is implemented by cascading periodical metamaterial modules with a unit length of less than λg/5 to make an electromagnetically homogeneous waveguide, of which the MEMS cantilevers are monolithically integrated in each unit as a radio frequency (RF) switch to modulate the phase constant β, and thereby to realize the scanning beams in the fixed frequency around 8 GHz. Experiments that verified the MEMS-modulated scanning radiation beams are tuned from the backward (around -15°) to the broadside (around 0°) and to the forward (around +15°) directions as the RF-MEMS switches are, respectively, actuated from the states of 0000-0000 (switches in all of the eight units are OFF) to 1010-1010 (switches in the unit of numbers 1, 3, 5, and 7 are ON) and to 1111-1111 (all switches are ON).

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