A High-Performance Standard Dipole Antenna Suitable for Antenna Calibration
Ideal dipole antennas are desirable for antenna calibration. However, real-world implementation issues introduce inevitable non-ideal effects that can significantly affect the quality of calibration. In this communication, a 2-GHz standard dipole (SD) antenna is presented with an excellent overall performance. This result is achieved by an innovative design with an optimized element shape and an embedded (shielded) balun. The designed feeding structure is a balanced structure that transitions from parallel strip lines to coaxial lines. The feeding method avoids the impact of electromagnetic environment asymmetry while achieving an appropriate balance. The measured relative bandwidth of the dipole exceeds 15%, and the antenna gain is approximately 2 dBi. The cross-polarization ratio is greater than 27 dB in the horizontal plane, and the horizontal gain variation is less than 0.2 dB. The dipole has a symmetrical vertical plane pattern, and the maximum gain point does not deviate from the horizontal plane. The high performance of this SD makes it suitable for antenna calibration.
Z. Cai et al., "A High-Performance Standard Dipole Antenna Suitable for Antenna Calibration," IEEE Transactions on Antennas and Propagation, vol. 69, no. 12, pp. 8878 - 8883, Institute of Electrical and Electronics Engineers (IEEE), Dec 2021.
The definitive version is available at https://doi.org/10.1109/TAP.2021.3091637
Electrical and Computer Engineering
Electromagnetic Compatibility (EMC) Laboratory
Keywords and Phrases
Antenna Calibration; Antenna Measurements; Baluns; Coaxial Cables; Conductors; Dipole Antennas; Embedded Balun; Gain; Inductors; Optimized Element Shape; Standard Dipole
International Standard Serial Number (ISSN)
Article - Journal
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01 Dec 2021