A Ferrite LTCC-Based Monolithic SIW Phased Antenna Array

Fully Inkjet‐Printed VO2‐Based Radio‐Frequency Switches for Flexible Reconfigurable Components

“…Several kinds of technologies are used for RF‐switching applications, such as a PIN diode‐based switch, a microelectromechanical‐systems (MEMS)‐based switch, a transistor‐based switch, ferrite‐ and ferro‐electric‐based devices, and so on. Each has its advantages and disadvantages; for instance, PIN diode switches feature fast switching speeds and longer operation life, but they can handle only relatively low power, and also they cannot work at very low frequencies.…”

Antenna‐in‐package Designs in Multilayered Low‐temperature Co‐fired Ceramic Platforms

“…The slotted waveguide antenna array has been a popular choice, particularly for applications such as radar, navigation systems, and high power wireless systems, due to its small volume, high efficiency, and high power handling capability. Several slotted SIW antenna arrays in LTCC technology have been shown in the literature [8][9][10]. In [9], an SIW-based slotted antenna array was demonstrated, as shown in Figure 7.3.…”

“…The capability of tuning the permeability tensor through an applied magnetic field means that any RF component realized on this tape system can be tuned or reconfigured. For AiP, this reconfigurability can be in resonant frequency [63], radiation pattern [10], or even in polarization [64]. Such tunable and reconfigurable antennas are highly desirable for the modern wireless communication systems as they can provide diversity and flexibility in the use of available spectrum as well as radiation space.…”

“…measured frequency response with bias from 0 mA to 180 mA (from right to left) [65] Ferrite LTCC has also been used for antenna designs with radiation pattern reconfigurability, in which the most important component is the embedded tunable phase shifter [70,71]. Only a handful of radiation pattern reconfigurable antennas with embedded phase shifter in ferrite LTCC have been demonstrated in the literature [10,72]. The concept of a phase shifter, which comprises an SIW section and embedded windings, feeding a slotted SIW 4 × 4 phase array antenna has been demonstrated in [10] and shown in Figure 7.22.…”

“…Only a handful of radiation pattern reconfigurable antennas with embedded phase shifter in ferrite LTCC have been demonstrated in the literature [10,72]. The concept of a phase shifter, which comprises an SIW section and embedded windings, feeding a slotted SIW 4 × 4 phase array antenna has been demonstrated in [10] and shown in Figure 7.22. The insertion phase of the SIW can be tuned according to the strength of the magnetic field applied to the ferrite substrate.…”