中圖分類號: TN713 文獻標識碼: A DOI:10.16157/j.issn.0258-7998.222676 中文引用格式: 馬瀚洋,,周雨進,,周駿. 三模混合集成小型化濾波器設(shè)計[J].電子技術(shù)應(yīng)用,,2022,,48(4):94-97,103. 英文引用格式: Ma Hanyang,,Zhou Yujin,,Zhou Jun. A triple-mode bandpass filter featured with hybrid integration and tiny size[J]. Application of Electronic Technique,2022,,48(4):94-97,,103.
A triple-mode bandpass filter featured with hybrid integration and tiny size
Abstract: A circuit topology of a LC series unit based triple-mode bandpass filter featured with hybrid integration and tiny siaze is proposed. The main part of the symmetrical circuit is composed of a “star” structure with four LC series units. It can realize the free adjustment of the two transmission zeroes by adjusting the parameters of the LC series units connected in parallel to the ground. Based on odd-even mode analysis method, this paper presents the comprehensive design method of the proposed filter and develops a triple-mode multiple-zero bandpass filter with miniaturization characteristics by using hybrid integration technology with commercial silicon-based surface mount capacitors. The simulation and test results of the developed filter are in good agreement. The filter has a 3 dB bandwidth of 1.34 GHz at center frequency of 2.6 GHz. The typical insertion loss of the filter is 1.6 dB. The upper stopband attenuation higher than 30 dB is 4~12 GHz. It occupies only 3.2 mm×1.9 mm(0.03λ0×0.02λ0).
Key words : multimode resonator;lumped-element,;miniaturized,;passband filter