Abstract: The coupled transcendental equations describing cutoff frequencies of TE and TM modes are deduced for a rectangular waveguide with arbitrary wall impedance. In the case of TE modes, their ...

This study investigates the propagation characteristics of electromagnetic (EM) waves radiated by Ultra-Wideband (UWB) and slot antennas inside a closed underground Cairo metro tunnel. The selected ...

5G base stations rely on phased arrays to steer signals and increase data rates. Beam steering circuits, however, consume power. Using waveguides could reduce energy consumption in base stations.

We propose a low-loss compound structure consisting of a multiplexed rectangular dielectric grating and a waveguide layer, which can function as multi-band optical filters and sensors in TE and TM ...

Abstract: A TM01 mode transducer based on dipole antenna is proposed to design a broadband and low-loss radial power combiner at Ka-band (26.5–40 GHz). It is an essential component in the radial power ...

Due to the power capacity limitation of the rotary joint, mechanical scanning radars are limited to use high-power microwave sources to improve their performance furthermore. To solve this problem, an ...

We consider this work to be crosscutting and fit into the journal’s scope for both its scientific significance and impacts on the applications, as this work is 1) an implementation of chaotic modes in ...

A leaky-wave antenna (LWA) realizes radiation of travelling wave along guiding structures. Periodic modulation is an effective approach to turn non-radiating modes into radiating modes. A ...

Part 1 of this FAQ looked at the context and the need for waveguides; Part 2 looks at the implementation and available components. Q: What standard waveguide are available? A: There are thousands of ...

In this paper we present the design of a leaky wave antenna based on Substrate Integrated Waveguide (SIW) loaded by Complementary Split Ring resonator (CSRR). The proposed antenna is designed for 5G ...

Traditional atom–light coupling techniques have propelled the field of quantum optics and atomic physics. Now, by drawing on spectacular improvements in nanofabrication and nanophotonics, we advance a ...