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Keywords = ScDDA

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13 pages, 6165 KB  
Article
On-Chip Bandstop to Bandpass Reconfigurable Filters Using Semiconductor Distributed Doped Areas (ScDDAs)
by Rozenn Allanic, Fabien Le Borgne, Hassan Bouazzaoui, Denis Le Berre, Cédric Quendo, Douglas Silva De Vasconcellos, Virginie Grimal, Damien Valente and Jérôme Billoué
Electronics 2022, 11(20), 3420; https://doi.org/10.3390/electronics11203420 - 21 Oct 2022
Cited by 2 | Viewed by 2056
Abstract
This paper presents two novel on-chip bandstop to bandpass reconfigurable filters in C and X bands. Designed on a silicon substrate, filter reconfigurability is achieved using semiconductor-distributed doped areas (ScDDAs), such as an N+PP+ junction integrated into the substrate. The [...] Read more.
This paper presents two novel on-chip bandstop to bandpass reconfigurable filters in C and X bands. Designed on a silicon substrate, filter reconfigurability is achieved using semiconductor-distributed doped areas (ScDDAs), such as an N+PP+ junction integrated into the substrate. The active element is therefore co-designed with the passive parts, allowing flexibility in ScDDA size and position. This flexibility offers advantages in terms of integration, ease of manufacture, and performance. The synthesis was developed in the OFF-state in order to match with the well-known one in the ON-state. As proof of concept, 5 GHz and 10 GHz filters were built. The simulated and measured results showed good agreement in both bandpass and bandstop configurations. Full article
(This article belongs to the Section Microwave and Wireless Communications)
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11 pages, 8661 KB  
Article
On-Chip Polarization Reconfigurable Microstrip Patch Antennas Using Semiconductor Distributed Doped Areas (ScDDAs)
by Rozenn Allanic, Denis Le Berre, Cédric Quendo, Douglas Silva De Vasconcellos, Virginie Grimal, Damien Valente and Jérôme Billoué
Electronics 2022, 11(12), 1905; https://doi.org/10.3390/electronics11121905 - 17 Jun 2022
Cited by 3 | Viewed by 2338
Abstract
This paper presents two polarization reconfigurable patch antennas using semiconductor distributed doped areas (ScDDAs) as active components. One proposed antenna has a switching polarization between two linear ones, while the other one has a polarization able to commute from a linear to a [...] Read more.
This paper presents two polarization reconfigurable patch antennas using semiconductor distributed doped areas (ScDDAs) as active components. One proposed antenna has a switching polarization between two linear ones, while the other one has a polarization able to commute from a linear to a circular one. The antennas are designed on a silicon substrate in order to have the ScDDAs integrated in the substrate, overcoming the needs of classical PIN diodes. Therefore, the proposed co-design method between the antenna and the ScDDAs permits us to optimize the global reconfigurable function, designing both parts in the same process flow. Both demonstrators have a resonant frequency of around 5 GHz. The simulated results fit well with the measured ones. Full article
(This article belongs to the Topic Antennas)
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11 pages, 5044 KB  
Article
Switchable DBR Filters Using Semiconductor Distributed Doped Areas (ScDDAs)
by Rozenn Allanic, Denis Le Berre, Cédric Quendo, David Chouteau, Virginie Grimal, Damien Valente and Jérôme Billoué
Electronics 2020, 9(12), 2021; https://doi.org/10.3390/electronics9122021 - 30 Nov 2020
Cited by 8 | Viewed by 2202
Abstract
This paper presents a novel way to switch dual-behavior resonator (DBR) filters without any additional active surface-mount components. By using a semiconductor substrate, we were able to simultaneously co-design the filters and semiconductor distributed doped areas (ScDDAs) with integrated N+PP+ [...] Read more.
This paper presents a novel way to switch dual-behavior resonator (DBR) filters without any additional active surface-mount components. By using a semiconductor substrate, we were able to simultaneously co-design the filters and semiconductor distributed doped areas (ScDDAs) with integrated N+PP+ junctions as active elements. These ScDDAs act as electrical vias in the substrate, which makes it possible to have an open-circuited resonator in the OFF state and a short-circuited resonator in the ON state, and, consequently, to control the transmission zeroes of the filters. This method offers degrees of freedom as the dimensions and positions of these doped areas can be chosen to obtain the best performances. In this study, four filters were simulated and fabricated to spotlight different possibilities for the dimensions and positions of the ScDDA to control the low- or high-frequency transmission zero of the filters. The simulations were in very good agreement with the measured results. All the filters present insertion losses lower than 2 dB in the OFF and ON states, a great flexibility in the frequency choice, and good agility compared with the state of the art. Full article
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