Silicon-integrated signal-interference dual-band bandpass filter for GNSS application

Addou, Mohammed Adnan; Lintignat, Julien; Gómez‐García, Roberto; Barelaud, Bruno; Torrès, François; Bila, Stéphane; Jarry, Bernard

doi:10.1109/mwsym.2017.8058962

Cited by 6 publications

(3 citation statements)

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“…Following that, the coupling line lengths (L 5 and L 6 ) and gap widths (g 4 and g 5 ) are designed based on (12) to meet the frequency response configuration and working bandwidth requirements of the two passbands in (15). Similarly, the relevant feed structure parameters, g 5 1 and L 7 , can be adjusted to satisfy the Q e1 and Q e2 requirements according to (16). Fig.…”

Section: E Design Proceduresmentioning

confidence: 99%

“…The designed filter has the capability of independently controlling the center frequencies of two bands using the coupling structure of two open-loop short column-loaded resonators. [16] presents a silicon integrated dual-band filter for GNSS. The filter structure is made up of two orthogonal coupled transverse filtering parts, each of which is composed of a quadrature power coupler in reflection mode.…”

Section: Introductionmentioning

confidence: 99%

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Design of a Harmonic Suppressed Dual-Band Reconfigurable Bandpass Filter for Multistandard GNSS Receivers

2022

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This paper proposes a reconfigurable dual-band bandpass filter with independently tunable center frequencies that is intended to be integrated into reconfigurable multiband global navigation satellite system receivers. The center frequencies can be adjusted within the range of 1160-1280MHz and 1530-1630MHz for the two passbands, respectively. To achieve the design goal, the input and output feed lines are shared by a pair of quarter-wave uniform impedance resonators and a stub-loaded stepped impedance resonator with terminal-loaded varactor bias circuits. The electric length of the transmission lines is changed by using bias voltage to control the varactor diodes, thereby changing the operating frequencies of the dualband filter's two passbands, and the independent reconfigurability of the two passbands is realized. The insertion loss is less than 1.5dB and the return loss is better than 26dB in all tuning ranges. The proposed dual-band reconfigurable filter demonstrates the flexibility of controlling the passband independently to be compatible with multistandard signals, which can accommodate the deployment of new GNSS standard specifications.INDEX TERMS Bandpass filter, dual-band, GNSS receiver, harmonic suppressed, reconfigurable, varactor diode.

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Section: E Design Proceduresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design of a Harmonic Suppressed Dual-Band Reconfigurable Bandpass Filter for Multistandard GNSS Receivers

2022

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“…White-space communications can also take benefit of this scenario by enabling the transmission of higher date rates by using non-adjacent frequency regions at the same time [6,7]. As of today, the interest of multi-band BPFs is fairly evidenced by the rich variety of solutions available in the technical literature for different RF technologies, such as planar [8][9][10], 3-D/waveguide [11][12][13][14], substrateintegrated waveguide [15][16][17], superconductor [18,19], and active/passive-integrated-circuit technologies [20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Combined signal‐interference/split‐type microwave multi‐band bandpass filters

Malki

Yang

Gómez‐García

2023

IET Microwaves Antenna & Prop

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Two classes of RF/microwave planar quad-band bandpass filters (BPFs) that simultaneously exploit transversal signal-interference and multi-passband-splitting mechanisms are reported. The first approach makes use of a triple-band bandpass transversal filtering section (TFS) composed of two in-parallel stepped-impedance coupled-line signalpropagation paths.By inserting an open-ended stub at the input and output terminals of this TFS, its middle passband is divided into two sub-bands to attain an overall quadpassband filtering response. The second configuration employs a dual-passband TFS based on a coupled-line directional coupler with open-ended stubs at its direct and coupled ports. By loading such TFS with a replica of it at the direct and coupled ports of its coupler, the two passbands are split into four sub-bands to obtain the quad-band functionality. The RF operational foundations of these quad-band BPFs, along with single-and multi-stage design examples featuring sharp-rejection four-passband filtering responses with transmission zeros (TZs), are detailed. Moreover, for experimentaldemonstration purposes, two microstrip prototypes are developed and tested. Besides, as a further application, a two-layer balanced-circuit version with ultra-broad commonmode (CM) suppression of the constituent triple-passband TFS of the first prototype is built and measured.

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