Telecommunications Science ›› 2012, Vol. 28 ›› Issue (6): 92-97.doi: 10.3969/j.issn.1000-0801.2012.06.023

• Research and development • Previous Articles     Next Articles

Improvement on Design of Microstrip Patch Log-Periodic Antenna

Zhen Yu1,2,Jianghua Wang1,Xiaoying Ran1   

  1. 1 School of Electronic and Information Engineering, North China Institute of Science and Technology, Langfang 065201, China;
    2 School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Online:2012-06-15 Published:2017-06-28

Abstract:

Based on the principles and the structure characteristics of traditional log-periodic dipole antenna, combined with the advantages of microstrip antenna, this paper improves the design of a wedge-angle microstrip patch log-periodic monopole antenna with 16 units working from 1.2 GHz to 3.2 GHz. It proposes an antenna interactive calculator with VB software to calculate and adjust antenna parameters conveniently. Then, to construct, simulate and optimize the antenna model with Ansoft HFSS software. The antenna is tested by PNA3621 vector network analyzer. Measurement results show that the antenna has good characteristics with symmetrical radiation pattern, broad bandwidth, little number of side lobes, the voltage standing wave ratio, which agree well with the simulation results.

Key words: microstrip patch log-periodic antenna, antenna calculator, simulation and test

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