Multiband Rabi antenna using nest microstrip add-drop filter (NMADF) for relativistic sensing applications

Sonasang, Somchat; Jamsai, M.; Jalil, M.A.; Pham, Nhat Truong; Ray, Kanad; Angkawisittpan, Niwat; Yupapin, P.; Boonkirdram, Sarawoot; Palomino-Ovando, M.; Toledo-Solano, M.; Misaghian, Khashayar; Lugo, J.E.

doi:10.1016/j.heliyon.2023.e13611

Cited by 4 publications

(1 citation statement)

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“…Microwave circuits have many applications such as filter circuit [1], reflectometer [2], diplexer [3], Wilkinson power divider/combiner [4][5][6], microstrip add-drop multiplexer [7,8], and microwave sensor application [9,10]. Since the microwave circuit is implemented and developed with the microstrip substrate material, the Wilkinson power divider is a general microwave and millimeter wave communication circuit [11].…”

Section: Introductionmentioning

confidence: 99%

Design of Wilkinson Power Dividers with SITL Compensated Microstrip Bandpass Filters

Phomloungsri,

Srisawat,

Sonasang

et al. 2024

ACES Journal

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This paper presents a simple technique for improving performances of a conventional Wilkinson power divider. The technique is achieved by replacing bulky quarter-wave transmission lines with stepped impedance transmission lines (SITL) compensated coupled lines. With the internal function of bandpass filter integrated with the proposed coupled lines, the spurious response at 2nd harmonics frequencies that normally exists in the conventional divider is considerably reduced. Simulated and measured results at 2.1 GHz operating frequency of the proposed and conventional Wilkinson power divider were compared. The proposed divider achieves -3.8 dB insertion loss (S21,S31) and more than 25 dB return loss (S11,S22,S33) across 10% fractional bandwidth. Based on this measurement, the proposed circuit achieves more than 34.5 dB suppression at the 2nd harmonic frequency.

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