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Dynamically Reconfigurable SIR Filter Using Rectenna and Active Booster.
- Source :
- IEEE Transactions on Microwave Theory & Techniques; Apr2019, Vol. 67 Issue 4, p1504-1515, 12p
- Publication Year :
- 2019
-
Abstract
- A novel dynamically reconfigurable bandpass filter (BPF) employing stepped-impedance resonators (SIRs) that can operate as either a single-band or a dual-band filter is demonstrated. The reconfigurable BPF uses four positive-intrinsic-negative (p-i-n) diodes as switching elements. With the four p-i-n diodes in the “OFF” state, the filter behaves as a low-loss (0.85 dB) single-band BPF with a passband around 2.45 GHz. The reconfigurable SIR filter can operate as a dual-band BPF with two center frequencies at 1.6 and 2.45 GHz. The diodes are dynamically set to the “ON” state in the presence of a 1.6-GHz RF signal that is received by an RF triggered power management unit (PMU), integrated on the back side of the microstrip filter in a dual-layer architecture. The RF triggered PMU consists of a planar inverted-F antenna, a high-efficiency voltage doubler rectifier (47% at −13 dBm) and an active dc-to-dc power booster. The rectified output voltage is used as the enabling voltage for the dc-to-dc power booster. This, in turn, provides the required dc power for the diodes biasing. The filter switches from single-band to dual-band when a wireless input RF signal (> −13 dBm) is received by the RF triggered PMU antenna. [ABSTRACT FROM AUTHOR]
- Subjects :
- BANDPASS filters
ELECTRIC impedance
RESONATORS
DIODES
ANTENNAS (Electronics)
Subjects
Details
- Language :
- English
- ISSN :
- 00189480
- Volume :
- 67
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- IEEE Transactions on Microwave Theory & Techniques
- Publication Type :
- Academic Journal
- Accession number :
- 135773714
- Full Text :
- https://doi.org/10.1109/TMTT.2019.2891524