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A compact slotted planar inverted-F antenna (PIFA) with a superstrate is presented in this paper. The proposed antenna covers 28 GHz millimeter wave frequency bands and can be useful for future 5G hand held devices. The antenna has been designed to be integrated to a mobile phone substrate of dimensions 110 mm × 60 mm, while reserving 70 mm × 35 mm area for a battery, and occupies a small volume of...
A printed monopole antenna with O-shaped ground plane presented in this paper covers FDD/TDD-LTE, DCS, PCS, and 2.4 GHz ISM bands for smartphone applications. The antenna has a wide impedance bandwidth of 2.02 GHz (1.12–3.14 GHz) with a voltage standing wave ratio of 3:1, given the overall antenna size is 40 × 15 × 0.035 mm3. Peak gain of the proposed antenna is 5.30 dBi with a gain variation of less...
A compact implantable planar inverted-F antenna with the full ground plane is presented for bio-telemetry applications in the medical device radiocommunications service (MedRadio) band (401–406 MHz). A basic three layer phantom model of skin, fat and muscle is initially considered and the antenna is placed in the muscle layer. Later, Gustav voxel model is used to verify the design. The overall size...
A compact planar inverted-F antenna (PIFA) with single layer dielectric load is presented in this paper. The proposed antenna covers 28 GHz millimeter wave frequency bands and can be useful for future 5G hand held devices. The antenna is placed on a mobile phone substrate of dimensions 110 mm × 60 mm reserving 70 mm × 35 mm for a battery, and occupies a small volume of 4 mm × 4 mm × 1.34 mm. The antenna...
A compact and low-profile wearable antenna for wireless body area network devices operating at 5.8 GHz ISM band is presented. The dimensions of the antenna are 9.5 mm × 16 mm with a wide impedance bandwidth of 650 MHz (5.42–6.07 GHz). Dimensions of the antenna are optimized using CST Microwave Studio. The antenna has a high directive gain of 6.9 dBi with less than 0.15 dB gain variation, having radiation...
A simple planar antenna of high gain for long term evolution (LTE), global system for mobile communications (GSM), Bluetooth, worldwide interoperability for microwave access (WiMAX), digital cellular services (DCS), personal communication services (PCS), wireless local area network (WLAN), and global positioning system (GPS) mobile terminals is presented. The antenna has wide −6 dB reflection coefficient...
This paper studies code design for lossless compression with coded side-information for uniform binary sources with symmetric correlation. We propose LDPC codes for binning and convolutional codes for coding the side-information, and we present two strategies to design the codes. We further investigate the rate gaps due to the imperfections of the practical binning and rate-distortion codes.
A simple structured planar wire antenna for WiMAX, Wi-Fi, WLAN, Bluetooth and satellite communication applications is presented. The antenna has four significant frequency bands with bandwidth of 194 MHz (2.956 – 3.15 GHz), 454 MHz (5.196 – 5.65 GHz), 79 MHz (6.538 – 6.617 GHz), and 424 MHz (12.812 – 13.236 GHz). The antenna is assumed to be feed by a 50 Ω coaxial cable. Application of RC network...
In this paper a compact dual L-slit slotted microstrip antenna for entire unlicensed national information infrastructure (UNII) band (UNII low 5.15–5.25 GHz, UNII mid 5.25–5.35 GHz, UNII worldwide 5.47–5.725 GHz and UNII upper 5.725–5.825 GHz) is proposed. This compact (15 × 9 mm size) antenna has good characteristics to cover UNII band for 5.2 GHz WLAN, 5.5 GHz Wi-Fi and 5.8 GHz WLAN & Bluetooth...
This paper presents a reconfigurable system that can encrypt digital data. The system provides the option of choosing one of familiar encryption methods DES, 3 DES and AES to the user. All these methods are symmetric type block cipher cryptography. DES takes 64 bit key to encrypt each 64 bits block of the entire message. AES on the contrary takes 128 bit key to encrypt each 128 bits block. Providing...
This paper presents compact ultra-wideband (UWB) LLI-slit slotted antenna for 5.2 GHz WLAN, 5.5 GHz Wi-Fi, and 5.8 GHz WLAN and Bluetooth operations. The proposed antenna provide a wide operating bandwidth of 1.9 GHz (4.85 – 6.75 GHz), thus allowing it to easily cover the required bandwidths for WLAN, Wi-Fi and Bluetooth operation in the 5.15–5.35/5.47–5.725/5.725–5.875-GHz bands respectively. The...
A high gain two elements inverted-L antenna (ILA) capable of generating two bands for 2.3 GHz mobile worldwide interoperability for microwave access (mobile WiMAX) and 5.5 GHz wireless-fidelity (Wi-Fi) operation is presented in this research. Geometry parameters of the antenna are optimized for 50 Ω antenna input impedance using method of moments (MoM's) in super-numerical electromagnetic code (super-NEC)...
This paper presents efficient motion detection of mobile node (MN) based on weighted momentum of received signal strength (WMRSS) in support of better handoff management in wireless network. In this method, for making momentum of received signal strength (MRSS) more accurate in detecting motion of MN, weight is applied to the received signal strength (RSS) of MN according to the priority and weighted...
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