Inflation linked bonds

The bonds have coupons that depend on the rate of inflation or a related index. There are two main structures.
Capital Indexed Bonds. The principal accretes according to the CPI or another price index or deflator. The bond´s coupon is a fixed percent of the accreted principal.
Floating Rate Bonds. The principal is fixed, but its coupon floats. The floating rate depends on inflation or something related, such as the rate of change in the CPI or as in the US on the Treasury Inflation Protected Security (TIPS) variable coupon rate.