公开(公告)号：WO2022086725A1

公开(公告)日：2022-04-28

申请号：PCT/US2021/054093

申请日：2021-10-08

Applicant: WI-LAN RESEARCH INC.

Inventor： RAMZAN, Muhammad Rashad ,  OMAR, Muhammad ,  STANWOOD, Kenneth

IPC: H01P7/08 ,  H01P3/08 ,  H01S5/10

Abstract: A ring resonator based T-shaped duplexer for use in communication systems includes a T-shaped microstrip duplexer body having a first rectangular-shaped body section and a second rectangular-shaped body section that extends from the first-rectangular shaped section in a perpendicular position relative to the first rectangular-shaped section, three connection ports including a first connection port disposed at an open end of the second rectangular-shaped body section, a second connection port disposed at one end of the first rectangular-shaped body section, and a third connection port disposed at another end of the first rectangular-shaped body section, and two bandpass filters, each comprising a ring resonator having a circular shape, an outer edge thereof being connected to the first rectangular-shaped body section, wherein each of the bandpass filters creates an Electromagnetically Induced Transparency window within a frequency absorption region of the filter to allow a signal to pass at a pre-tuned frequency band.

公开(公告)号：WO2023009198A1

公开(公告)日：2023-02-02

申请号：PCT/US2022/030622

申请日：2022-05-24

Applicant: WI-LAN RESEARCH INC.

Inventor： RAMZAN, Rashad ,  OMAR, Muhammad ,  USMAN, Muhammad

IPC: H01P7/08 ,  H01P1/20 ,  H01P1/203 ,  H01S5/10

Abstract: A new class of passive modulators is described herein which can be manufactured using a standard CMOS or any other IC design technology. The proposed mm-wave modulator exhibits both phase and amplitude modulation, which can be combined to make a polar modulator using a single passive structure. The proposed modulators described herein have an excellent linearity and have good power handling capability compared to the active class of modulators.