مشروع البحث: I nvestigation and enhancement of phase shift of 90 hybrid
تحميل...
المساهمين
الممولين
رقم التعريف
6064
الباحث
الزهراء سعيد منصور
الوصف
The 90° hybrid coupler is a four-port microwave device which takes an input on one port
and provides an even power split on two output ports with a 90 degree phase shift
between them. The fourth port on the device is isolated from the first port.
The 90 degree hybrid coupler also known as quadrature hybrids or simply quad hybrids
,This device exhibits reciprocal behavior because any port can act as an input, and the
device will operate in the same manner .
Common uses of quadrature couplers include:- Antenna feed systems, the combination
of power division/combining and 90º phase shift can simplify the feed network of phased
array antenna systems, compared to alternative networks using delay lines.
A coupler can be categorized by five main parameters:- bandwidth, insertion loss,
coupling ratio, phase shift between ports, and isolation.
الكلمات الدالة
Investigation and Enhancement