A UWB micro-strip antenna design and simulation

Diet, Antoine; Azoulay, Alain; Joisel, A.; Duchêne, Bernard

doi:10.1109/eumc.2006.281448

Cited by 4 publications

(9 citation statements)

References 6 publications

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“…9, and introduce the four S parameters in the transient AGILENT ADS simulation. If the FE identified here as PA + antenna is not providing a pass-band profile function as well as amplification, some unwanted and un-allowed spectral re-growths will be crippling as it is confirmed by the results of [9]. The emission of an envelope restored on the signal is a subject of research in this type of architecture because the entire spectrum of the PA driving signal is not a "useful" information.…”

Section: V F R O N T -E N D C O -S I M U L a T I O Nmentioning

confidence: 74%

“…Actual popular techniques are based on linearization of the architecture with a decomposition and recombination of the information, for example, the envelope elimination and restoration (EER) presented in [5] and studied in [2-4, 6, 9, 11] where the use of a high-efficiency PA (HPA) enables a high efficiency for PAPR in the range of 16 dB. Our interest in the paper concerned is that this filter process can be partially done, thanks to the output network of a switched mode PA, and so filtering needs would be relaxed by the antenna characteristic [3,7,9]. Moreover, this implies filtering before the antenna and the overall efficiency will be lowered by the coding efficiency.…”

mentioning

confidence: 99%

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Front-end HPA/antenna for multi-radio

Diet¹,

Ribière-Tharaud²,

Villegas³

et al. 2012

Int. J. Microw. Wireless Technol.

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antoine m. diet 1 , nicolas ribie ' re-tharaud 2 , martine villegas 3 and genevie ' ve baudoin 3 This paper focuses on multi-radio front-end transmitter, a function implied by cognitive radio (0.5-6 GHz). S and C bands standards (wireless local and metropolitan area networks) present a challenge, due to the signal modulation schemes (orthogonal frequency division multiplex (OFDM)/WCDMA, wideband code division multiple access) dynamic (tens of dBs), driving us to a mandatory transmitter linearization. The idea is to provide frequency, flexibility, and average power control of a multi-radio high-efficiency front end for such signals (polar/envelope elimination and restoration (EER) structure). The study implies antennas design and average power control demonstration. Based on a switched mode power amplifier (PA), a discrete detuning is possible to adapt the PA at both "WiMAX" and "Wifi5" frequencies. This architecture amplifies signals with amplitude information. This is coded here by the SD/PWM (pulse width modulation) technique, to present a constant envelope signal. The amplitude information is restored by a pass-band radio frequency (RF) filter. The antenna can be designed with a notch, to reduce the filtering constraints (selectivity and standards coexistences) and to help in the restoration of amplitude information. Average power control is illustrated by voltage supply variation and results are a possible dynamic of 9.5 dB. To complete the analysis, the simulation of the propagation channel, including antennas, with CST (free space, line of sight) is imported under AGILENT-ADS.

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Section: V F R O N T -E N D C O -S I M U L a T I O Nmentioning

confidence: 74%

mentioning

confidence: 99%

Front-end HPA/antenna for multi-radio

Diet¹,

Ribière-Tharaud²,

Villegas³

et al. 2012

Int. J. Microw. Wireless Technol.

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“…The diversity of proposed solutions is very important. The most important constraint is to build a non-resonant structure, which generally implies wide bent surfaces of conductor printed on substrates [15]. Travelling wave structures are also preferred because they allow avoiding geometric resonances.…”

Section: Design Consideration For the Antennamentioning

confidence: 99%

An "F-Gain" Antenna for Uwb-Rfid

Diet¹,

Ribière-Tharaud²

2011

PIER C

Self Cite

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This paper presents an UWB antenna concept adapted for a potential application of RFID in a severe multi-paths environment for European regulation (UWB-LDR 6-8.5 GHz). The UWB provides theoretically the signal integrity and designing the UWB antenna is compatible with low size, cost and low complexity consideration. Under the hypothesis of using the same antenna at both transmitting or receiving states, the 1/f 2 effect of free space attenuation can be minimised by a pre-emphasis included in the antenna design, that is to say an "f-gain" antennas at both transmitting (Tx) and receiving (Rx) parts. As a result, the printed antennas described are neither constant aperture nor constant gain type.

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“…Thus, signal transmission and reception need minimized distortion, spreading, and ringing [3]. Printed antennas have been studied due to their compact size, low profile, low‐fabrication cost, low weight, wide impedance bandwidth, semi omnidirectional, and simple feed ability, which make it easy to integrate with microwave integrated [4–8].…”

Section: Introductionmentioning

confidence: 99%

M‐shape surrounded with ring patch wideband monopole printed antenna

Aghda

Kamarudin

Iddi

2011

Micro & Optical Tech Letters

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In this article, a novel compact SEBG structure with rectangular slotted microstrip patch antenna has been proposed for cellular applications. The parameters of the EBG structure (spacing, width, length, and number of the micro strip lines) and the thickness of the substrate were optimized using CST Microwave Studio to obtain the maximum gain and bandwidth. Although the EBG structure reduced the surface wave, the bandwidth enhancement was due mainly to the coupling between the patch and the SEBG structure. To validate the proposed concept, experimental results have been presented, showing that the bandwidth is 93.2% and 11.75% increased than the patch at lower and higher resonant frequency, respectively, with the new substrate. ACKNOWLEDGMENTS

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A UWB micro-strip antenna design and simulation

Cited by 4 publications

References 6 publications

Front-end HPA/antenna for multi-radio

Front-end HPA/antenna for multi-radio

An "F-Gain" Antenna for Uwb-Rfid

M‐shape surrounded with ring patch wideband monopole printed antenna

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