Development of low-loss millimeter-wave antennas on fluorine substrate using electro-fine-forming fabrication

Author

Ito, Naoki ; Mase, Atsushi ; Seko, Noriaki ; Tamada, Masao ; Sakata, Eiji ; Kogi, Yuichiro

Author_Institution

Kyushu Univ., Fukuoka

fYear

2006

fDate

12-15 Dec. 2006

Firstpage

2031

Lastpage

2033

Abstract

Polytetrafluoroethylene (PTFE) has many desirable properties for substrates of millimeter-wave planar antennas such as low dielectric constant and loss tangent. However, it has weak adhesion to various metals. Surface treatment of PTFE via radiation-induced graft polymerization was carried out to improve the adhesion. The peel adhesion strength of the PTFE/Cu was attained to be 10.3 N/cm by the treatment. The dielectric function of grafted- PTFE remained almost unchanged after the graft polymerization. The design and fabrication of millimeter-wave antennas on the treated PTFE substrates have been performed using electro-fine- forming (EF2) technology.

Keywords

fluorine; millimetre wave antennas; planar antennas; polymerisation; PTFE; dielectric constant; dielectric function; electro-fine-forming fabrication; fluorine substrate; low-loss millimeter-wave antennas; planar antenna; polytetrafluoroethylene; radiation-induced graft polymerization; Adhesives; Antenna measurements; Copper; Dielectric constant; Dielectric measurements; Fabrication; Millimeter wave technology; Polymers; Resins; Surface treatment; PTFE; adhesion; dielectric constant; graft polymerization; millimeter-wave; peel strength; surface treatment;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2006. APMC 2006. Asia-Pacific

Conference_Location

Yokohama

Print_ISBN

978-4-902339-08-6

Electronic_ISBN

978-4-902339-11-6

Type

conf

DOI

10.1109/APMC.2006.4429810

Filename

4429810