This communication presents a periodic leaky-wave antenna array with the advantages of a high endfire gain at the center frequency and a stable endfire radiation beam over the entire operating band. The antenna has a narrow width and consists of multiple monopoles located on the microstrip line. It can be fabricated by line-cutting copper strips. The antenna has a high endfire gain because it is a leaky-wave antenna designed based on the Hansen&#x2013;Woodyard condition. With a length of <inline-formula> <tex-math notation="LaTeX">$5.5lambda _{0}$ </tex-math></inline-formula> and a width of <inline-formula> <tex-math notation="LaTeX">$0.33lambda _{0}$ </tex-math></inline-formula>, a measured endfire gain of 12.9 dBi is achieved at the center frequency of 5 GHz. Good matching and stable endfire radiation beams are achieved over the entire operating band from 4.5 to 5.5 GHz. Good agreement between the measurement and the simulation has been obtained.

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matching endfire radiation beams periodic leakywave antenna array hansenampx2013woodyard condition

Yuefeng HouYue LiZhijun ZhangZhenghe Feng,.Narrow-Width Periodic Leaky-Wave Antenna Array for Endfire Radiation Based on Hansen&#x2013;Woodyard Condition. 66 (11),6393-6396.

Yuefeng HouYue LiZhijun ZhangZhenghe Feng,"Narrow-Width Periodic Leaky-Wave Antenna Array for Endfire Radiation Based on Hansen&#x2013;Woodyard Condition" 66

Yuefeng HouYue LiZhijun ZhangZhenghe Feng,"Narrow-Width Periodic Leaky-Wave Antenna Array for Endfire Radiation Based on Hansen&#x2013;Woodyard Condition"