The deadline failure probability as a function of the number of slots in a frame and the packet error probability (P e) for network B in the steady state. The deadline period is assumed to be 4 frames.

A novel fixed frequency beam-steering leaky-wave antenna (LWA) is presented in this manuscript. Radiation occurs through thin offset longitudinal slots etched on a substrate integrated waveguide (SIW). The achieved by implementing GaAs varactor diodes the backside of antenna. Sweeping bias voltage from 1V to 15V causes phase constant variation, leading 25° at 28.5 GHz. key novelties proposed re...

In this paper, a novel circularly polarized (CP) ridge-waveguide slotted antenna array is proposed for vehicle used Satcom on the Move (SOTM) applications. The designed closely following required factors generating circular polarization. constructed symmetrical single-ridge waveguide. Each element consists of pair inclined slots opened narrow walls, and longitudinal bottom U-shaped wall are abl...

This paper presents a cavity-backed antenna array in substrate integrated waveguide (SIW) technology the millimeter-wave frequency band. The proposed design uses double slots as radiating elements instead of conventional single slots. allow better control operating bands antenna. performance antennas with and is compared to assess enhanced behavior As proof concept, 2 × designed, manufactured, ...

This paper presents a microstrip antenna using CPW-fed heptagonal shaped antenna embedded with triangular shaped slots for WLAN/WIMAX applications. The proposed antenna provides an impedance bandwidth of 3.08 GHz. The antenna exhibits dual frequency bands 3.4 GHz to 6.48 GHz, covering WLAN and WiMAX bands. The parametric study is performed to understand the characteristics of the proposed anten...

Induction machines are perhaps the most widely used of all electric motors. They are generally simple to build and rugged, offer reasonable asynchronous performance: a manageable torque-speed curve, stable operation under load, and generally satisfactory efficiency. Because they are so widely used, they are worth understanding. In addition to their current economic importance, induction motors ...

In this paper, we have designed the patch array antennas with the slots capable of working in millimeter-wave radar system. The designed array antennas have multi-band characteristics at 77GHz. As a result, this paper is proposed the possibility of prototyping by design and analysis of microstrip array antennas for mm-wave radar as using a patch arrays with U-shaped slots.

<p><span>In this study, a high-gain wideband circularly polarized (CP) printed monopole antenna for wireless local-area network (WLAN), worldwide interoperability microwave access or WiMAX, C-band, and multiple input, output (MIMO) applications was proposed demonstrated. The structure has an octal-shaped tilted by 20° from its longitudinal axis, excited coaxial probe feeding, partia...