A 40 GHz LTCC receiver module using a novel submerged balancing filter structure

Ziroff, Andreas; Nalezinski, M.; Menzel, Wolfgang

doi:10.1109/rawcon.2003.1227915

Cited by 12 publications

(12 citation statements)

References 2 publications

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“…Much effort has been paid to improve the selectivity and common-mode (CM) suppression level of the balanced bandpass filter (BPF) so that it can achieve the desired bandpass frequency response in differential operation and reduce the level of the CM noise at the same time. However, previous reported works [1,2] on balanced filters suffer from poor CM suppression. The CM suppression with the use of the double-sided parallel-strip line [3] was improved at the cost of increasing the circuit size.…”

Section: Introductionmentioning

confidence: 99%

High selectivity and common-mode suppression combline balanced BPF

Deng

Zhao

et al. 2013

Journal of Electromagnetic Waves and Applications

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In this study, new balanced microstrip bandpass filter (BPF) based on steppedimpedance combline structure is proposed with high selectivity and high commonmode (CM) suppression performance In the beginning, a single-ended compact stepped-impedance resonator (SIR) combline BPF with enhanced performance including low insertion loss, sharp skirt and wide stopband response is designed by consisting of an array of short quarter-wavelength bi-section SIRs with a new scheme of tapped-transformer coupling at input and output ports. Under CM excitation, no special consideration or design procedure is required to suppress the CM, and the CM suppression is the nature of the parallel-coupled filter. Finally, the second-and third-order SIR combline balanced BPFs for WLAN application, without loss of generality, have been designed and implemented. The simulated and measured results show a good agreement and validate the proposed theory.

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Section: Introductionmentioning

confidence: 99%

High selectivity and common-mode suppression combline balanced BPF

Deng

Zhao

et al. 2013

Journal of Electromagnetic Waves and Applications

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“…Much effort has been paid to improve common‐mode (CM) suppression level of the balanced bandpass filter (BPF) so that it can achieve the desired bandpass frequency response in differential operation and simultaneously reduce the level of the CM noise. However, previous reported works on balanced BPFs suffered from poor CM suppression. The CM suppression with the use of the double‐sided parallel‐strip line was improved at the cost of increasing the circuit size.…”

Section: Introductionmentioning

confidence: 99%

High CM suppression balanced BPF with two CM transmission zeros

Deng

Zhao

et al. 2013

Micro & Optical Tech Letters

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A new compact, low insertion loss, and wide stopband balanced bandpass filter (BPF) with two common‐mode (CM) transmission zeros within the differential‐mode (DM) passband is designed in this article. The DM filtering topology is formed by two quarter‐wavelength resonators and a short stub loaded source‐load coupling structure which can generate new transmission zeros to improve the selectivity and suppress the harmonic to widen the stopband. The center‐loaded step‐impedance open stub can be applied to misalign two CM fundamental resonant frequencies, meanwhile adjust one CM transmission zero to the DM passband. To enhance the CM suppression within the DM passband, another CM transmission zero is created by the folded stub loaded in the 50‐Ω input feedline which creates the first DM transmission zero located at 2 f0d ( f0d is the center frequency of DM passband) and has little effect on the DM in‐band and lower‐stopband performance. Finally, a high CM suppression balanced BPF prototype for WLAN application is designed and fabricated. The simulated and measured results show a good agreement. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:135–141, 2014

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“…Amplifier linearity plays a major role in modern communication systems [1][2][3][4][5][6][7]. To accurately decode digitally modulated signals, linear amplification is crucial in the transmitting and receiving portions of the system.…”

Section: Introductionmentioning

confidence: 99%

Compact balanced bandpass filter using interdigital line resonator with high common‐mode noise suppression

Chen

2012

Micro & Optical Tech Letters

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A novel balanced microstrip bandpass filter (BPF) using compact interdigital line resonator (ILR) is proposed in this article. The presented balanced BPF has shown good common‐mode (CM) noise suppression, while the size is reduced. For design purposes, the differential‐mode (DM) and CM equivalent circuits of the ILR are given. The DM resonator has a smaller size compared to the conventional quarter‐ and half‐wave resonators. In addition, the CM resonant frequency is much higher than the DM resonator frequency in the ILR. Based on this property, the CM response can be strong suppressed over the DM operating frequency range. A fourth‐order balanced BPF with a size of 23 × 22.5 mm2 and 50 dB CM noise rejection within the passband is demonstrated and measured. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:918–920, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26737

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A 40 GHz LTCC receiver module using a novel submerged balancing filter structure

Cited by 12 publications

References 2 publications

High selectivity and common-mode suppression combline balanced BPF

High selectivity and common-mode suppression combline balanced BPF

High CM suppression balanced BPF with two CM transmission zeros

Compact balanced bandpass filter using interdigital line resonator with high common‐mode noise suppression

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