Balun bandpass filters represent a critical advancement in radio frequency (RF) circuit design, integrating the dual functions of balanced-to-unbalanced conversion and frequency selection.

Integrated Passive Devices (IPDs) are manufactured using integrated circuit processing methods similar to those utilized in semiconductor fabrication, although they are not limited to silicon ...

Abstract: We present a new approach to secure wireless operations using a simple dipole antenna with a dynamic unbalanced feeding structure. By rapidly switching between two states, a dynamic ...

A compact lumped-element balun with 2.5:1 bandwidth is designed, fabricated, measured, and used for feeding the dipole-mode, while a compact microstrip coupled-line impedance transformer is used for ...

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An Integrated-Passive-Device (IPD) balun prototype, based on a GaAs substrate, was designed, fabricated and tested to validate its bandwidth and phase inversion properties. The prototype balun ...