Near field nulling antenna systems

Details Near field nulling antenna systems Near field nulling antenna systems

2007-07-30

2009-08-25

Owens, Douglas W. (Department: 2821)

Communications: radio wave antennas

Antennas

High frequency type loops

C343S741000, C343S867000, C343S895000

Reexamination Certificate

active

07579995

ABSTRACT:
An antenna system is provided. The antenna system comprises a first antenna with a first operating frequency and a second antenna with a second operating frequency. The second antenna has a first near field with a first near region in which the first antenna is disposed and a second near region. The second antenna has a first gain in the first near region which is lower than a second gain in the second near region. The first gain and the second gain are both at a same one of the first operating frequency and the second operating frequency.

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