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A wideband loop‐type antenna
Author(s) -
Moon Sungjin,
Lee Hongkoo,
Kim Hyeongdong
Publication year - 2015
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.29160
Subject(s) - ground plane , wideband , bandwidth (computing) , hfss , usb , electrical impedance , engineering , electrical engineering , standing wave ratio , center frequency , physics , microwave , antenna tuner , electronic engineering , antenna (radio) , microstrip antenna , computer science , antenna factor , telecommunications , band pass filter , software , programming language
A new feed structure with a loop‐type radiator is proposed for achieving a wide bandwidth characteristic. The method for achieving a wide impedance bandwidth characteristic is to control the input impedance of the feed structure using a parallel capacitor and inductor. The size of the ground plane is 50 × 20 mm 2 , which is usually used as the ground for USB dongle applications. The size of the rectangular ground clearance for the loop‐type antenna is 8 × 4 mm 2 . The proposed antenna was designed and measured using HFSS and a 3D CTIA OTA chamber. The center frequency is 2.45 GHz and the impedance bandwidth under VSWR = 2:1 is 550 MHz (2.18–2.73 GHz), which is adequate for long term evolution bands (7, 30, 40) and Wi‐Fi applications. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:1742–1744, 2015