Premium
A compact dual‐band dual‐mode antenna for GPS L1/L2 adaptive interference cancellation
Author(s) -
Rezazadeh Navid,
Shafai Lotfollah
Publication year - 2020
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.32114
Subject(s) - multi band device , antenna (radio) , microstrip antenna , optics , dielectric , interference (communication) , dual polarization interferometry , single antenna interference cancellation , physics , electronic engineering , acoustics , optoelectronics , electrical engineering , engineering , channel (broadcasting) , detector
A dual‐band dual‐mode microstrip antenna design is presented, with the application of adaptive interference cancellation in global positioning system at the L1 and L2 bands. The antenna consists of two stacked TM 11 rings and two stacked TM 21 shorted rings all fed by coaxial probes. By properly combining the two modes and utilizing both polarization components of each mode, up to three nulls can be steered at each frequency band to cancel interferers close to horizon. The concentric structure of the radiating patches in the proposed design allows for a compact antenna, which for a substrate of dielectric constant of 10 is only 0.33 λ in diameter at its lowest frequency of operation and can be further miniaturized on a higher dielectric constant substrate.