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A new printed log‐periodic dipole array ( PLPDA ) antenna with bandwidth broadening and gain improving
Author(s) -
Yang Shuming,
Zhai Huiqing,
Li Jiaxu,
Zeng Yi
Publication year - 2020
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.22266
Subject(s) - dipole antenna , bandwidth (computing) , antenna gain , wideband , antenna measurement , high gain antenna , center frequency , dipole , fractional bandwidth , frequency band , physics , electronic engineering , acoustics , optoelectronics , antenna (radio) , computer science , antenna factor , electrical engineering , engineering , telecommunications , band pass filter , quantum mechanics
Abstract A broader impedance bandwidth and higher gain printed log‐periodic dipole array antenna fed by half‐mode substrate integrated waveguide (HMSIW) is proposed in this letter for ultra‐wideband (UWB) wireless communication applications. The bandwidth of the reference antenna (5.1‐11.4 GHz) is expanded by 1.3 GHz by introducing a new resonance frequency with additional patches. Moreover; gain is enhanced over full band by attaching metal plate to narrow beam and adding directors to attract energy radiated by dipoles. A simulation analysis of the improved antenna with broader bandwidth of 4.1 to 11.7 GHz and higher gain is presented, along with a design procedure and experimental results. Measurement results are consistent with simulation results, which verifies the feasibility of this technique.