Title :
New uniplanar transitions for circuit and antenna applications
Author :
Dib, Nihad I. ; Simons, Rainee N. ; Katehi, Linda P B
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA
fDate :
12/1/1995 12:00:00 AM
Abstract :
New uniplanar microstrip-to-slotline, microstrip-to-coplanar strips (PS) and microstrip-to-coplanar waveguide (CPW) transitions for MIC/MMIC and slotline antennas for phased array applications are described. Such transitions are compact and suitable to be used in an open environment inside a package or a multichip module. The transitions share the concept of using a balun which consists of two microstrip lines connected to a slotline through a pair of coupled microstrips. In this paper, the transitions are studied theoretically using the Finite Difference Time Domain (FDTD) technique and measured experimentally using an HP8510C Network Analyzer. For a back-to-back microstrip-to-slotline transition, an insertion loss of less than 1.3 dB per transition is achieved over a 49% bandwidth with a minimum of 0.6 dB around the design frequency
Keywords :
MMIC; antenna phased arrays; baluns; coplanar waveguides; finite difference time-domain analysis; microstrip antenna arrays; microstrip lines; microwave integrated circuits; multichip modules; network analysers; 0.6 to 1.3 dB; HP8510C network analyzer; MIC; MMIC; antenna applications; back-to-back transition; balun; design frequency; finite difference time domain technique; insertion loss; microstrip-to-coplanar strips transitions; microstrip-to-coplanar waveguide transitions; microstrip-to-slotline transitions; multichip module; open environment; phased array applications; slotline antennas; uniplanar transitions; Coplanar waveguides; Finite difference methods; MMICs; Microstrip antenna arrays; Microstrip antennas; Microwave integrated circuits; Phased arrays; Slotline; Time domain analysis; Waveguide transitions;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
