Compact micro strip directional coupler with high directivity for broadband applications
AssigneeHCL Technologies Limited
InventorsKameswara Rao Balijapalli, Ravi Kishore, Kumaralingam Ramamoorthy, Karthikeyan Shanmugavelu, Deepa Vedhanayagam
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Abstract
The directional coupler supports ultra high bandwidth of 5600 MHz (from 400 MHz to 6 GHz) in compact structure and also provides high directivity of (>15 dB). The coupler uses a two stage micro-strip directional coupler for a frequency range of 400 MHz to 6 GHz, where the first stage supports a frequency of operation from 0.4 to 1 GHZ and the second stage supports a frequency of operation from 1 GHz to 6 GHz and the required coupled port can be chosen using a radio frequency switch as required by the application used in.
Claims3
A compact microstrip directional coupler providing high directivity and capable of operating over an ultra-high bandwidth comprising of:
- a first stage coupler operating at 0.4 to 1 GHz;
- a second stage coupler operating at 1 to 6 GHz;
- and
- a radio frequency switch to select between said first stage and said second stage.
Dependencies are inferred from the claim text.