Abstract
This paper describes the design of a high-efficiency vehicular roof-mounted antenna for wireless access for vehicular environment (WAVE) communication systems used for ubiquitous intelligent systems. The main objective of the ubiquitous intelligent system’s automotive IT technology is to enhance the connectivity among vehicles to ensure seamless communication and to reduce the initial access time using high-performance antenna systems. The efficiency of WAVE communication systems used for ubiquitous intelligent systems depends on the antenna efficiency. The proposed vehicular antenna for WAVE communication systems shows an improvement of approximately 4.77 dB in the return loss, as compared with a conventional antenna system.
Highlights
The wireless access for vehicular environment (WAVE) is a recently developed wireless communication technology that enables the instant update of traffic information to vehicles
It is essential for the return loss of the WAVE communication systems to exhibit a minimum value of −24.47 dB over the field of view (FOV)
This paper presents the design of a high-performance vehicular array antenna for WAVE
Summary
The wireless access for vehicular environment (WAVE) is a recently developed wireless communication technology that enables the instant update of traffic information to vehicles. WAVE communication systems operate in the 5.850–5.925 GHz frequency band assigned by the Federal Communication Commission (FCC) [8] These systems adopt the advanced orthogonal frequency division multiplexing (OFDM) scheme to achieve high-speed data rates up to 6–27 Mbps. These characteristics make the WAVE communication system an attractive physical layer scheme with a high-efficiency antenna for a ubiquitous intelligent system. In cases where the antennas do not exhibit an elliptical beam pattern, the accessible distance for vehicular communication will be reduced owing to unnecessary radiations. We proposed the rectangle array patch antennas structure to increase the performance of the antenna by reducing the return loss and the side-lobs waves of unnecessary radiation
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