Compact Tri-Band BPF with Controllable Passbands Based on Stubs Loaded Stepped-Impedance Resonators
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Jin Xu
Abstract
In this paper, a novel second-order tri-band bandpass filter (BPF) is presented by using the first three modes of stubs loaded stepped-impedance resonators (SIRs). The resonant behavior of proposed stubs loaded SIR is analyzed by even-/odd-mode method and parameters sweep, which shows its controllable first three resonant modes. As an example, a second-order tri-band BPF operating at 3.5/5.2/5.8 GHz for WiMax and WLAN applications is designed, fabricated and measured. The fabricated filter has a compact size of 0.21λg × 0.28 λg. Good agreement is shown between the simulated and measured results.
Funding source: National Natural Science Foundation of China
Award Identifier / Grant number: 61401358
Funding statement: This work was supported in part by the National Natural Science Foundation of China under Grant 61401358, the Fundamental Research Funds for Central Universities under Grant 3102014JCQ01058 and No.30920140122005, and the State Key Laboratory of Millimeter Waves open research program under Grant K201614.
References
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©2016 by De Gruyter
Articles in the same Issue
- Frontmatter
- Shielding Effectiveness Estimation by using Monopole-receiving Antenna and Comparison with Dipole Antenna
- Two Element Magneto-Dielectric Resonator Antenna for Angle Diversity
- Compact Dual-band ACS-fed Monopole Omnidirectional Antenna for 2.4/5.2/5.8 GHz WLAN Applications
- Small Printed Tri-band Antenna with Reduced Ground-plane Effect
- Compact Tri-Band BPF with Controllable Passbands Based on Stubs Loaded Stepped-Impedance Resonators
- Design of Single- and Dual-Band Power Dividers Integrated Filtering Responses Based on SIRs
- Design of Microstrip Lowpass Filter Using bend Configuration with Excellent sharpness in Transition Band
- Through Wall Stationary Human Target Detection and Localization Using OFDM-UWB Radar
- Energy vs. Cyclostationarity-based Detection of Random Arrival and Departure of LTE SC-FDMA Signals for Cognitive Radio Systems
- Efficient Spectrum Sharing in Heterogeneous Wireless Environments
Articles in the same Issue
- Frontmatter
- Shielding Effectiveness Estimation by using Monopole-receiving Antenna and Comparison with Dipole Antenna
- Two Element Magneto-Dielectric Resonator Antenna for Angle Diversity
- Compact Dual-band ACS-fed Monopole Omnidirectional Antenna for 2.4/5.2/5.8 GHz WLAN Applications
- Small Printed Tri-band Antenna with Reduced Ground-plane Effect
- Compact Tri-Band BPF with Controllable Passbands Based on Stubs Loaded Stepped-Impedance Resonators
- Design of Single- and Dual-Band Power Dividers Integrated Filtering Responses Based on SIRs
- Design of Microstrip Lowpass Filter Using bend Configuration with Excellent sharpness in Transition Band
- Through Wall Stationary Human Target Detection and Localization Using OFDM-UWB Radar
- Energy vs. Cyclostationarity-based Detection of Random Arrival and Departure of LTE SC-FDMA Signals for Cognitive Radio Systems
- Efficient Spectrum Sharing in Heterogeneous Wireless Environments
