Lumped-element RF analog multi-band bandpass filter concept for software-defined-radio architectures

Gómez‐García, Roberto; Muñoz‐Ferreras, José‐María; Psychogiou, Dimitra; Addou, Mohammed Adnan; Lintignat, Julien; Barelaud, Bruno; Jarry, Bernard

doi:10.1109/newcas.2017.8010115

Cited by 2 publications

(3 citation statements)

References 6 publications

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“…Multi-band BPF concepts: The details of the first multi-band concept using cascaded MRCs are provided in Figure 1. Each filter is shaped by K MRCs that comprise N in-parallel connected series-type resonators that are cascaded in series through K−1 impedance inverters Z X-1 , X (X = 2 to K−1) [13]. In this manner, N−1 Kth-order passbands located at frequencies f P1-N and in between N transmission zeros (TZs) are created.…”

Section: Bpf Bandpass Filters; Mrc Multi-resonant Cell; Tzs Transmiss...mentioning

confidence: 99%

Multi‐band glass‐integrated bandpass filters for new radio (NR) communications

Webb

Psychogiou

2023

Electronics Letters

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A class of multi-band bandpass filters (BPFs) based on glass-integrated multi-resonant cells (MRCs) are reported. Each MRC comprises multiple in-parallel connected series-type resonators that create passbands in-between transmission zeros (TZs)-located at the resonators' resonance. The MRCs can be combined in multi-stage configurations to create high-order multi-band transfer functions or used in the RF input and output ports of a conventional transversal multi-band BPF to enhance its selectivity by adding poles and TZs without increasing its size. A compact integration concept using high-Q 3D integrated-passive devices (IPDs) is used for the realization of sub-6-GHz multi-band BPFs. For practical validation purposes: (1) a tri-band BPF with passbands centred at 1.58, 2.07, 2.83 Hz and fractional bandwidths (FBWs): 10.9, 9.06, 10% respectively and in-band insertion loss (IL) between 2 and 2.8 dB and (2) a dual-band BPF with passbands centred at 2 and 2.9 GHz with FBW 14.9% and 16.14% we manufactured and tested.

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Section: Bpf Bandpass Filters; Mrc Multi-resonant Cell; Tzs Transmiss...mentioning

confidence: 99%

Multi‐band glass‐integrated bandpass filters for new radio (NR) communications

Webb

Psychogiou

2023

Electronics Letters

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“…In order to facilitate their deployment, multi-band bandpass filters (BPFs) with a highly selective response, low insertion loss (IL) and small physical size need to be incorporated in the RF front-ends of these systems in order to be able to acquire the bands of interest while suppressing the unwanted interfering signals. Therefore, the realization of filters with multi-band transfer functions has been an important topic of research [1][2][3][4][5][6][9][10][11][12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

“…However, they exhibited moderate out-of-band rejection of about 20-30 dB [9][10][11][12] and spurious resonances appeared at a distance of 1.5 f 0 [13]. BPFs using discrete LEs have also been presented [16][17][18], however, most of the integration schemes using discrete commercially available surface mount devices (SMDs) are limited to frequencies lower than L-band.…”

Section: Introductionmentioning

confidence: 99%

Quasi-elliptic dual-band bandpass filters based on series-cascaded multi-resonant cells

Ashley

Simpson

Psychogiou

2020

Int. J. Microw. Wireless Technol.

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This paper reports on quasi-elliptic dual-band bandpass filters (BPFs) that were designed for the Filter Student Design Competition of the 2019 European Microwave Week. The proposed lumped-element (LE) BPF concept is based on two dual-band transversal cells and one multi-resonant cell that allow the realization of symmetric and asymmetric dual-band transfer functions shaped by six poles and five transmission zeros. A compact implementation scheme based on LE series resonators is proposed for size compactness and wide spurious free out-of-band response. For proof-of-concept demonstration purposes, a dual-band LE prototype with two passbands centered 1 and 1.5 GHz was designed, manufactured, and measured. It exhibited the following radio frequency measured performance characteristics. Passbands centered at 1.02 and 1.45 GHz, minimum insertion loss levels of 2.0 and 2.7 dB, and bandwidth of 146 and 105 MHz, respectively, for the first and the second passband, and out-of-band rejection >30 dB between 0 and 894 MHz, 1.17–1.34 GHz, and 1.72–6.9 GHz.

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Lumped-element RF analog multi-band bandpass filter concept for software-defined-radio architectures

Cited by 2 publications

References 6 publications

Multi‐band glass‐integrated bandpass filters for new radio (NR) communications

Multi‐band glass‐integrated bandpass filters for new radio (NR) communications

Quasi-elliptic dual-band bandpass filters based on series-cascaded multi-resonant cells

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