Novel design and fabrication of a mechanically tunable multiband watch antenna for wireless applications
Résumé
Abstract Novel design of a tunable watch antenna for both wideband wireless applications is presented in this paper. Arrows in the watch radiating patch are designed to control the bandwidth; also, a ground structure is designed beneath the radiating patch to allow multi-band operation. If the arrows of the watch mention a certain time, this allows a certain multiband, while if the time changes, it allows another different multiband; the antenna performs as a wideband antenna (WBA). Furthermore, we can obtain different frequency bands by assuming a mechanism to change the time of the watch. The antenna was examined at 1, 2, 3, and 4 o’clock in simulation, while the 1:45 design was fabricated. The S11 in the four simulated cases was examined to check the obtained frequency bands. The 1:45 fabricated antenna has a unique design and footprint of (diameter 30 x height 0.635) mm. The S11 for the simulated and measured antenna was examined. The obtained gain and efficiency were 70 dB and − 20 dB, respectively. The axial ratio was also examined and was less than 3 dB. When the position of either the minutes or hours arrow changes, the antenna acts as a WBA with different operating frequency bands. The mechanism of the proposed antenna designates it as a wideband antenna for GSM, CDMA, UMTS, LTE, Wi-MAX, 5G (Ultra-Fast & Low Latency) communications applications.
Citer ce document
Accès au document
Texte intégral en lecture en ligne, réservé aux abonnés SPHAERO et aux membres de l'institution. Se connecter
Voir l'article sur le site de la revueAuteur(s)
Statistiques
Consultations : 1
Téléchargements : 0