access icon free Slotted substrate integrated cavity antenna using TE330 mode with low profile and high gain

A novel slotted cavity antenna based on substrate integrated waveguide (SIW) technology using TE330 mode is presented for the first time. The SIW-based cavity operating at TE330 mode is simply fed by a coaxial probe. Energy is coupled out of the cavity by a 3 × 3 slot array etched on the top surface of the cavity. An antenna prototype operating at WLAN 5.8 GHz band fabricated with standard printed circuit board (PCB) process on a single substrate is exemplified to validate the proposed concept. The overall volume of the antenna is 1.6λ 0 × 1.6λ 0 × 0.029λ 0. Measured results show that the antennas achieve a bandwidth of 4.7% for 10 dB return loss and gain of up to 13.6 dBi. The proposed antenna features low profile, high gain, ease of fabrication and high efficiency, which makes it a good candidate for low-cost mass-production.

Inspec keywords: printed circuits; slot antenna arrays; probes; antenna feeds; waveguide antenna arrays; wireless LAN; mass production; substrate integrated waveguides

Other keywords: TE330 mode; standard printed circuit board; substrate integrated waveguide technology; coaxial probe; SIW-based cavity; mass production; loss 10 dB; WLAN; slot array; frequency 5.8 GHz; PCB process; slotted substrate integrated cavity antenna; antenna fed; SIW technology; antenna prototype

Subjects: Local area networks; Waveguides and microwave transmission lines; Printed circuits; Antenna accessories; Antenna arrays; Radio links and equipment; Computer communications

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http://iet.metastore.ingenta.com/content/journals/10.1049/el.2013.4073
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content/journals/10.1049/el.2013.4073
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