Title :
An ultra wide bandwidth power divider on MMIC operating 4 to 10 GHz
Author :
Staudinger, Joseph
Author_Institution :
Motorola Inc., Chandler, AZ, USA
Abstract :
A circuit topology is presented for realizing power dividers with bandwidths of 2.5:1 or greater on MMIC. This topology consists of lumped-element interconnected networks and is thus ideally suited for MMIC technology. This proposed minimum-element topology favors component values that are easily realizable and thus minimize losses due to low-Q elements. A three-way divider was fabricated that achieved 5.8-dB nominal insertion loss and 18-dB isolation form 4 to 10 GHz. The circuit was designed on a 60-mil*60-mil chip and included RF probe pads at each port to allow measurement of on-chip performance. all circuit components were realized as MIM capacitors. NiCr resistors, and air bridge inductors. A short length of high-impedance transmission line was included at the input on the divider to compensate for the parasitic nature of the lumped elements. Excellent agreement was obtained between measured and predicted performance.<>
Keywords :
MMIC; waveguide components; 18 dB; 4 to 10 GHz; 5.8 dB; 60 mil; MIM capacitors; MMIC; NiCr resistores; RF probe pads; SHF; air bridge inductors; bandwidths; high-impedance transmission line; insertion loss; isolation; lumped-element interconnected networks; minimize losses; minimum-element topology; on-chip performance; performance; three-way divider; wide bandwidth power divider; Bandwidth; Circuit topology; Insertion loss; Integrated circuit interconnections; Isolation technology; MMICs; Network topology; Power dividers; Radio frequency; Transmission line measurements;
Conference_Titel :
Microwave and Millimeter-Wave Monolithic Circuits Symposium, 1989. Digest of Papers., IEEE 1989
Conference_Location :
Long Beach, CA, USA
DOI :
10.1109/MCS.1989.37278