Compact GLONASS Band-Pass Filter Based on Waveguide with Resonance Membranes

Ogorodnikov, Dmitri K.; Kharitonova, Natalya F.; Litinskaya, Yelena A.; Salomatov, Yury P.

doi:10.1109/apeie52976.2021.9647598

Cited by 1 publication

(2 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).…”

Section: E Design Proceduresmentioning

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%

“…Filters with multiple passbands, such as dual-band bandpass filters(DBBPF), are more advantageous in GNSS applications. Based on waveguide-slot membranes, a waveguide compact filter is proposed in [12]. The designed filter has good passband characteristics in the L1 and L2 bands and is suitable for use in GLONASS/GPS navigation systems.…”

Section: Introductionmentioning

confidence: 99%