公开(公告)号：US20240106464A1

公开(公告)日：2024-03-28

申请号：US17934758

申请日：2022-09-23

Applicant: Eridan Communications, Inc.

Inventor： Hazal Yüksel ,  Douglas Kirkpatrick ,  Dubravko Babic

IPC: H04B1/00 ,  H04B1/10 ,  H04B1/30

CPC classification number: H04B1/006 ,  H04B1/10 ,  H04B1/30 ,  H04B2001/307

Abstract: A wideband-tunable radio frequency (RF) receiver having a tunable RF bandpass filter (RF BPF) and passive mixer-first receiver (PMF-Rx) is disclosed. The tunable RF BPF and PMF-Rx operate synergistically, exploiting the intrinsic impedance translation property of the PMF-Rx, to suppress out-of-band interferers as well as in-band interferers at the receiver front end and thereby enhance the receiver's signal-to-noise ratio and overall dynamic range. In one embodiment of the invention the tunable RF BPF and PMF-Rx are independently tunable and afford the receiver the ability to reject or suppress interferers that might not otherwise be able to be rejected or suppressed.

公开(公告)号：US09490756B1

公开(公告)日：2016-11-08

申请号：US14997640

申请日：2016-01-18

Applicant: Eridan Communications, Inc.

Inventor： Dubravko Babic

IPC: H03F3/217 ,  H03F1/56 ,  H03F3/19

CPC classification number: H03F1/56 ,  H03F1/565 ,  H03F3/19 ,  H03F3/195 ,  H03F3/217 ,  H03F3/2171 ,  H03F3/24 ,  H03F3/245 ,  H03F2200/387 ,  H03F2200/451 ,  H04B2001/0408 ,  H04B2001/0416

Abstract: A phase-stiff radio frequency power amplifier (RFPA) is disclosed. The high phase-stiffness property of the RFPA obviates the need for a circulator or other isolation device in applications where the RFPA is used to implement the high-power amplifier in a transmit-receive module (TRM) configured for use in a phased array. The phase-stiff RFPA is designed to operate in switch-mode, resulting in high energy efficiency. Together, the high energy efficiency and high phase-stiffness attributes of the RFPA afford the ability to construct a phased array having a SWaP (Size, Weight and Power) performance that far surpasses that which can be possibly achieved in a phased array constructed from conventional TRMs.

Abstract translation: 公开了一种相位强的射频功率放大器（RFPA）。 RFPA的高相位刚度属性避免了在RFPA用于在配置用于相控阵列的发射 - 接收模块（TRM）中实现高功率放大器的应用中需要循环器或其他隔离装置。 相位刚性RFPA被设计为在开关模式下工作，导致高能量效率。 一起，RFPA的高能量效率和高相位刚度属性提供构建具有远远超过可能在由常规构成的相控阵列中可能实现的SWaP（尺寸，重量和功率）性能的相控阵列的能力 TRMs。

公开(公告)号：US20220393931A1

公开(公告)日：2022-12-08

申请号：US17804626

申请日：2022-05-31

Applicant: Eridan Communications, Inc.

Inventor： Fran Kostelac ,  Ante Brizic ,  Dubravko Babic

IPC: H04L27/36 ,  H03F3/24 ,  H03F3/217 ,  H04L27/04

Abstract: A modulated RF carrier produced at the output of the polar transmitter's switch-mode power amplifier (SMPA) is conveyed to an output filter network comprising a harmonic low-pass filter (LPF) connected in parallel with an absorptive high-pass filter (HPF). Together the harmonic LPF and absorptive HPF pass the fundamental component of the modulated RF carrier to the polar transmitter's load while also absorbing higher harmonic components that would otherwise be undesirably reflected back toward the output of the SMPA.