Compact ultra-wideband planar serrated antenna with notch band ON/OFF control

Shameena, V. A.; Suma, M.N.; Rohith, K.raj; Bybi, P. C.; Mohanan, P.

doi:10.1049/el:20062863

Cited by 23 publications

(19 citation statements)

References 3 publications

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“…Therefore, it is necessary to turn off the filtering function, if there is no interferences from narrow band systems in the antenna environment. A slot loaded with a PIN diode or MEMS has been proposed to achieve switchable band-notched characteristic [12][13][14][15]. An antenna with both tunable and switchable notch bands has been realized in [16] by using six pin diodes.…”

Section: Introductionmentioning

confidence: 99%

Active Uwb Printed Antenna With Tunable and Switchable Band-Notched Functions

Xu¹,

Tang²,

Xu³

et al. 2012

PIER Letters

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Abstract-A printed ultra-wideband (UWB) monopole antenna with both tunable and switchable band-notched characteristics is proposed. An embedded resonant slot loaded with a varactor and a pin diode controlled by DC signal through one common bias network is employed to tune and switch the notch band. In the "all-pass" state when the two diodes are partially turned on, the power consumption of this active antenna is only 2.4 µW. Measured return loss, radiation pattern, gain and group delay of the introduced antenna are presented in this paper.

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Section: Introductionmentioning

confidence: 99%

Active Uwb Printed Antenna With Tunable and Switchable Band-Notched Functions

Xu¹,

Tang²,

Xu³

et al. 2012

PIER Letters

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“…Hence, an ON/OFF control using PIN-diode switches are proposed [23,24], and if frequency agility for the rejected band is required, it can be achieved by replacing the PIN-diode by a varactor diode [25,26]. Interestingly, the present open-literatures on band rejection switching are still rarely discussed, especially when the rejected band is excited from the ground plane instead of the radiating element.…”

Section: Introductionmentioning

confidence: 99%

“…Interestingly, the present open-literatures on band rejection switching are still rarely discussed, especially when the rejected band is excited from the ground plane instead of the radiating element. Furthermore, the effects of the chip inductor that are commonly used for RF isolation are not discussed either [23], and the possibility of achieving agility for the rejected band using a varactor with a different value has also not been thoroughly studied.…”

Section: Introductionmentioning

confidence: 99%

“…By inserting two inverted T-shaped slit at both sides of the ground plane, a band rejection function at around 5 GHz is excited. In addition, its ability to perform band rejection switching is accomplished by simply replacing the two small patches located at each vertical sides of the ground plane by two PIN-diodes, thereby saving the trouble to create any additional narrow slits for DC block, which is a common practice presented in [23,24]. Note that the effects of different chip inductor values used for RF isolation, and the possibility of achieving a tunable rejected band behavior by replacing the PIN-diodes with varactor diodes are also investigated.…”

Section: Introductionmentioning

confidence: 99%

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PLANAR UWB ANTENNA WITH 5 GHz BAND REJECTION SWITCHING FUNCTION AT GROUND PLANE

Sim¹,

Chung²,

Lee³

2010

PIER

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Abstract-The design of an octagonal-shaped microstrip-fed planar monopole antenna for ultrawideband (UWB) operation is studied. Two inverted T-shaped slits are embedded on the ground plane to allow band rejection characteristic from 5 to 6 GHz (for VSWR < 2). To enable switching capability for this band rejection function, a PIN diode is connected to each slit via a specified chip inductor that will be further investigated. Several prototypes were constructed and the measured results show that the proposed antenna can provide an operating bandwidth from 3.07 to 10.7 GHz, except for the rejected band. Simulation analyses are also carried out to validate the experimental results.

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“…No design of this type applied to wideband planar monopole antennas has been found in the literature, except in [143], where a similar idea was developed in parallel to the present design. However, in this reference another concept is applied, based on the usage of a PIN diode not to feed the slot, but to change its length and generate a resonance outside the operating band.…”

Section: Results For the Reconfigurable Antenna Prototypementioning

confidence: 99%

Analysis and design of antennas for wireless communications using modal methods

Antonino‐Daviu¹

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To my parents.To Pepe. AgradecimientosDespués de tantos años de trabajo considero necesario plasmar aquí mi agradecimiento a todas aquellas personas que me han prestado su apoyo durante esta etapa.En primer lugar, agradecer a mi director de tesis, Miguel Ferrando, la confianza depositada en mí desde el primer momento, así como su apoyo y dedicación durante estos años. Espero seguir trabajando con él durante mucho tiempo, y seguir aprendiendo día a día de sus inestimables conocimientos y experiencia.En segundo lugar, agradecer a Alejandro Valero sus consejos y ayuda en muchos momentos de la tesis, sobre todo en los tiempos en que comenzaba y éramos muy pocos en el grupo de investigación. Agradecer también a Mariano Baquero y a Vicent M. Rodrigo su total disposición a ayudar cuando ha sido necesario.A Marta Cabedo quiero agradecerle su ayuda, confianza y amistad durante estos años de trabajo. Muchas han sido las dificultades que hemos sobrellevado juntas y siempre la he considerado una gran compañera de equipo.También quiero agradecer a José Ignacio Herranz su ayuda, compañerismo y amistad durante estos años de elaboración de la tesis.Agradecer también al resto de miembros del Grupo de Radiación Electromagnética (los que están o han estado) su ayuda y amistad, haciendo que este trabajo no haya resultado tan duro gracias a ellos: Daniel Sánchez, Esperanza Alfonso, David González, Antonio Vila, Bernardo Bernardo, Felipe Vico, Fulvio Grassi y Michele Gallo. Agradecer también a Carlos A. Suárez su amistad, sus consejos y su ayuda durante la etapa que compartió con nosotros en la UPV.Quiero agradecer especialmente a mis padres su apoyo incondicional durante estos años. Ellos me han enseñado siempre que todo lo que vale la pena requiere esfuerzo y dedicación, y que al final uno obtiene su recompensa. Sé que esta Tesis es tan importante para ellos como para mí. También quiero agradecer a mis hermanos, Jose, Vicente y Francisco, su ayuda y ánimos incondicionales.Quisiera también mostrar mi agradecimiento a los miembros del Departamento de Antenas y modelado EM, de la empresa alemana IMST GmbH, con los que compartí cuatro meses de este trabajo. Agradecerle a Matthias Geissler el acogerme en la empresa y el permitirme disfrutar de un gran ambiente de trabajo y profesionalidad. Y muy especialmente, agradecer a Marta Martínez su ayuda y orientación durante esos meses en la empresa, además de hacerme sentir como en casa durante el tiempo que estuve en Alemania. A ella y a su marido Ángel les debo los grandes momentos vividos en Düsseldorf.Por último, quiero agradecerle a la persona que más cerca de mí ha estado durante estos años su apoyo, confianza, ánimo y paciencia infinita. ¡Muchas gracias Pepe por permitirme sobrellevar los momentos duros con energía y confianza y por estar ahí siempre dispuesto a apoyarme! AcknowledgementsAfter all these years of hard work I think it is necessary to express my gratitude to those people that have given me their support over all these years.First of all, I would like to thank my advisor, M...

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Compact ultra-wideband planar serrated antenna with notch band ON/OFF control

Cited by 23 publications

References 3 publications

Active Uwb Printed Antenna With Tunable and Switchable Band-Notched Functions

Active Uwb Printed Antenna With Tunable and Switchable Band-Notched Functions

PLANAR UWB ANTENNA WITH 5 GHz BAND REJECTION SWITCHING FUNCTION AT GROUND PLANE

Analysis and design of antennas for wireless communications using modal methods

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