Wireless communication has been developed these years. And, many digital communication products have been brought into our life, and many wireless communication services are integrated into a communication product. A desired antenna for modern wireless communications is needed to cover many bands, such as DVB band (530 ~ 860MHz) [1-3], GSM band (890 ~ 960MHz), DCS band (1710 ~ 1880MHz) [4-5], P...

Modern wireless and mobile communication systems requires antenna which should have light weight, low profile, low cost, and easy to be integrated with RF devices. This demand is completed by microstrip antennas. This paper presents rectangular microstrip patch antenna for WLAN applications designed using IE3D software. The microstrip antenna is designed with dielectric substrate as Rogers RT/d...

A major challenge for the WLAN technology stems from having to share the 2.4 GHz ISM band with other wireless devices such as Bluetooth radios. The main goal of this paper is to investigate the use of techniques to mitigate the effects of interference for Bluetooth and WLAN and discuss the resulting performance trade-offs. We compare the performance of the Bluetooth and WLAN systems and evaluat...

Abstract—An ultra wideband (UWB) coplanar waveguide (CPW) fed rectangular monopole antenna, which is of band notched characteristic for Wireless Local Area Network (WLAN), Worldwide inter-operability for Microwave Access (WiMAX) and the C-band satellite communications, is proposed, fabricated and measured. In order to obtain the desired dual band rejections, a piece of pentagonal slotline and a...

A compact microstrip-fed antenna with dual notched bands is proposed. First, a simple basic configuration is presented for Ultra Wide Band (UWB) applications and then the dual band notched structure is extended from the UWB one. The basic structure of the UWB antenna consists of a simple square radiating patch and a ground plane with a wide square slot on back of the substrate. A semi-circle sh...

We propose a model-based channel access mechanism for cognitive radio-enabled secondary network, which opportunistically uses the channel of an unslotted primary network when the channel is sensed idle. We refer to primary network as the network which carry the main traffic in a designated spectrum band. We have considered IEEE 802.11 WLAN as a de facto primary network operating in ISM band. Ou...

A compact CPW-fed double T-Shaped antenna is proposed for dual-band wireless local area network (WLAN) operations. For the proposed antenna, the -10 dB return loss bandwidth could reach about 25.5% for the 2.4 GHz band and 5.7 % for the 5 GHz band, which meet the required bandwidth specification of WLAN standard. To reduce the mutual coupling and get high isolation between two dual-band antenna...

With the development of communication technology and wide application 5G information technology, various mobile equipment manufacturers have higher demands for compact, small, light, low-cost, dual-band antennas. Therefore, this paper designs a metamaterial structure-based antenna with operating frequencies covering wireless local area network (WLAN) bands. According to simulated measured resul...