Frequency, Radiation Pattern and Polarization Reconfigurable Antenna Using a Parasitic Pixel Layer

Rodrigo, Daniel; Cetiner, Bedri A.; Jofre, L.

doi:10.1109/tap.2014.2314464

Cited by 195 publications

(101 citation statements)

References 19 publications

Supporting

Mentioning

100

Contrasting

Order By: Relevance

“…The port numbering follows the same color scheme as in earlier figures, with the black curves representing the weighted superposition of the individual antenna patterns. The superposition is obtained from (10), (11) with the condition specified in (12). The results show that the radiation pattern is not significantly altered.…”

Section: A Scattering Parameters and Efficiencymentioning

confidence: 99%

“…Instead of covering all the channels simultaneously, the antenna can be tuned to a specific channel, thus relaxing the bandwidth requirements of the antenna. Approaches for antenna tuning include tunable matching components [7]- [9], switching between multiple matching circuit networks [10] or using, e.g., p-i-n diodes [11], [12] or FET switches [13] to modify the currents in the antenna. The last option is also known as aperture tuning.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Frequency Reconfigurable Multiband Handset Antenna Based on a Multichannel Transceiver

Hannula

Saarinen

Holopainen

et al. 2017

IEEE Trans. Antennas Propagat.

View full text Add to dashboard Cite

Abstract-The upcoming standards of wireless communications result in additional and more stringent requirements for antennas in mobile phones. In this paper, we present a frequencyreconfigurable antenna that could potentially be suited for future mobile devices. Frequency reconfigurability is achieved through a cluster of mutually coupled antenna elements that are excited with frequency-dependent weights using a multichannel transceiver. We report a mobile handset antenna cluster measuring 15 x 15 x 1.6 mm 3 that covers the frequency bands of 1.7-2.7, 3.3-4.5, and 5.475-6.425 GHz with an antenna efficiency better than 90 %. The operation of the antenna cluster is experimentally verified by feeding all the antenna elements with proper weights using tailor-made power splitters that represent a multi-channel transceiver with adjustable amplitude and phase in each branch. The results obtained with the feed networks suggest the feasibility of the reconfigurability concept, and pave way for co-design of the antenna and the transceiver.

show abstract

Section: A Scattering Parameters and Efficiencymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Frequency Reconfigurable Multiband Handset Antenna Based on a Multichannel Transceiver

Hannula

Saarinen

Holopainen

et al. 2017

IEEE Trans. Antennas Propagat.

View full text Add to dashboard Cite

show abstract

“…RA can satisfy the diverse requirements and strict standards of advanced wireless communication systems due to its numerous merits such as reducing size, expanding capacity, improving security and lessening interference [2], [3]. According to the alterations of electrical parameters, RAs can be mainly divided into four categories: frequency-reconfigurable antenna (FRA), polarization-reconfigurable antenna (PoRA), pattern-reconfigurable antenna (PaRA), and multiparameter-reconfigurable antenna (MRA) [4].…”

Section: Introductionmentioning

confidence: 99%

Compact Microstrip Antenna with Pattern-Reconfigurable Characteristic

Wang¹,

Wang²,

Zong³

et al. 2017

RADIOENGINEERING

View full text Add to dashboard Cite

“…Wave propagation [1,2] mechanism is an essential process to understand in order to characterize a waveform [3], with different metrics including the source of propagation, the frequency range, the polarization [4], the energy or power in the duration of observation, the source's envelope, the variation of the phase and so on. Waveform estimation is generally made using a collection of sensors that placed in different positions so as to estimate the variations of wave's characteristics in regi on of space, the process of estimation becomes difficult in the presence of multiple sources [5].…”

Section: Introductionmentioning

confidence: 99%