Signal-to-noise maximization in DVB-H receivers using reconfigurable matching networks

Sánchez-Pérez, César; Mingo, J. de; García-Dúcar, Paloma; Carro, Pedro L.

doi:10.1109/tce.2010.5606269

Cited by 2 publications

(2 citation statements)

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“…With the following S parameters, once Eq. (11-12) has been applied in (1)(2)(3)(4) for the concatenated network SN2:…”

Section: IIImentioning

confidence: 99%

“…New reconfigurable architectures are intended to be fully multiband and concurrent. There are multiple references related to "Reconfigurable Matching Networks" (RMNs) for different applications in a single band, explaining the simple process of adapting transmit and receive antenna impedances [2,3] as well as the search for improvement in transmission efficiency, both from the broadband, multiband or reconfigurable frequency band point of view. Examples of power amplifiers based on Doherty technology [4], Envelope Tracking (ET) [5], Dynamic Load Modulation [6] or in other applications such as Tunable Diplexer [7] or the design of reconfigurable transmitters [8] using Tunable Matching Networks (TMNs) (also known as reconfigurable matching networks (RMN) [21,28]) for reconfigurable amplifiers or in applications like MRI [17] have been extensively studied and designed for multiple purposes.…”

Section: Introductionmentioning

confidence: 99%

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Triple-Band Concurrent Reconfigurable Matching Network

et al. 2021

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Reconfigurable Matching Networks (RMN) have found a wide range of applications, such as antenna impedance matching (Antenna Tuning Units -ATU-), the design of reconfigurable power amplifiers, applications in Magnetic Resonance Imaging (MRI), adjustable low noise amplifier design, etc. In this paper, we propose the experimental design and verification of a reconfigurable impedance synthesis network that can simultaneously work in three different bands and is completely independent so that the impedance variations in a frequency band are approximately transparent to the rest. The variable elements used in this paper are varactors. To verify its operation, it is applied to a process of matching a laser modulator in three different frequency bands for C-RAN (Cloud Radio Access Networks) applications. Experimental results demonstrate, as expected, that losses may depend on the state in which they are driven. Consequently, a state that can guarantee a good match could also imply greater losses, leading to a certain trade-off. The application of genetic algorithms in this context points out that it may be convenient to optimize the insertion losses of the complete chain instead of the return losses.INDEX TERMS Multiband Reconfigurable Matching Network (RMN), reconfigurable devices, load-pull.

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“…With the following S parameters, once Eq. (11-12) has been applied in (1)(2)(3)(4) for the concatenated network SN2:…”

Section: IIImentioning

confidence: 99%