Multiband antenna operation with a non-resonant element using a reconfigurable matching network

Anguera, Jaume; Andújar, Aurora; Leiva, José Luis; Schepens, Cor; Gaddi, R.; Kahng, Sungtek

doi:10.1049/cp.2018.1199

Cited by 4 publications

(1 citation statement)

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“…To avoid such a drawback and increase the bandwidth to allocate more frequency bands, a tunable capacitor is strategically included in the passive matching network, resulting in a reconfigurable circuit. Hence, the reconfigurable circuit comprises lumped capacitors and inductors and a digitally tunable capacitor [34].…”

Section: Digitally Tunable Capacitors For Antenna Boostersmentioning

confidence: 99%

Reconfigurable Multiband Operation for Wireless Devices Embedding Antenna Boosters

Anguera

Andújar²,

Leiva³

et al. 2021

Electronics

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Wireless devices such as smart meters, trackers, and sensors need connections at multiple frequency bands with low power consumption, thus requiring multiband and efficient antenna systems. At the same time, antennas should be small to easily fit in the scarce space existing in wireless devices. Small, multiband, and efficient operation is addressed here with non-resonant antenna elements, featuring volumes less than 90 mm3 for operating at 698–960 MHz as well as some bands in a higher frequency range of 1710–2690 MHz. These antenna elements are called antenna boosters, since they excite currents on the ground plane of the wireless device and do not rely on shaping complex geometric shapes to obtain multiband behavior, but rather the design of a multiband matching network. This design approach results in a simpler, easier, and faster method than creating a new antenna for every device. Since multiband operation is achieved through a matching network, frequency bands can be configured and optimized with a reconfigurable matching network. Two kinds of reconfigurable multiband architectures with antenna boosters are presented. The first one includes a digitally tunable capacitor, and the second one includes radiofrequency switches. The results show that antenna boosters with reconfigurable architectures feature multiband behavior with very small sizes, compared with other prior-art techniques.

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Section: Digitally Tunable Capacitors For Antenna Boostersmentioning

confidence: 99%

Reconfigurable Multiband Operation for Wireless Devices Embedding Antenna Boosters

Anguera

Andújar²,

Leiva³

et al. 2021

Electronics

View full text Add to dashboard Cite

show abstract

Antenna Booster Technology

Anguera,

Andújar

2024

Encyclopedia of RF and Microwave Engineering

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Small and multiband antennas are always playing a predominant role in wireless communications to provide range, connectivity, and ensure battery life. In this regard, antenna booster technology features small size (∼λ/30), multiband, and multi‐radio behavior and at the same time easy to be embedded into a wireless device due to its chip‐like nature. The design of antenna systems radically differs from those based on conventional antenna design relying on shaping the geometry of the antenna to determine the frequencies of operation. On the contrary, with the antenna booster technology approach, the frequencies of operation are determined by the designer thanks to the combination of an antenna booster and a matching network. By doing so, all the complexity in the antenna part is removed and most of the intelligence is translated into the matching network. This enables making an antenna booster 10 times smaller than other antennas while flexibly adapting to any wireless protocol and device. Besides, reconfigurability can be combined with the matching network increasing the flexibility to adapt to any frequency band. Antenna booster technology is finding its applications in the design of wireless devices needing operation in the frequency range from 0.4 to 10 GHz.

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