Prosecution Insights
Last updated: April 19, 2026
Application No. 18/486,425

CAVITY BACKED DIPOLE ANTENNA WITH REDUCED CAVITY SIZE

Non-Final OA §102§112
Filed
Oct 13, 2023
Examiner
KARACSONY, ROBERT
Art Unit
2845
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
BAE Systems PLC
OA Round
1 (Non-Final)
77%
Grant Probability
Favorable
1-2
OA Rounds
2y 10m
To Grant
92%
With Interview

Examiner Intelligence

Grants 77% — above average
77%
Career Allow Rate
698 granted / 908 resolved
+8.9% vs TC avg
Moderate +15% lift
Without
With
+14.8%
Interview Lift
resolved cases with interview
Typical timeline
2y 10m
Avg Prosecution
24 currently pending
Career history
932
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
38.7%
-1.3% vs TC avg
§102
37.0%
-3.0% vs TC avg
§112
17.3%
-22.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 908 resolved cases

Office Action

§102 §112
Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Election/Restrictions Applicant’s election without traverse of the invention corresponding to group I (claims 1-14) in the reply filed on July 14, 2025 is acknowledged. Information Disclosure Statement The information disclosure statement (IDS) submitted on October 13, 2023 is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner. Claim Objections Claims 9-11 are objected to because of the following informalities: Claims 9 and 10: The term “any” should be changed to “any of” for grammatical reasons. Claim 9: The limitation “corresponding a corresponding section” should be changed to “a corresponding section” for grammatical reasons. Claim 11 should depend on claim 10 so as to provide antecedent basis for its claim terms. Appropriate correction is required. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claims 1-14 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claim 1: The terms “first conductive structure” and “second conductive structure” are indefinite as it is unclear whether the claimed conductive structure is limited to a pair of conductive structures, as discussed in the specification (publication, para. [0033]), or a single conductive structure, as discussed in the specification (publication, para. [0034]). For examination purposes, the claim is interpreted to read on any number of conductive structures. claim 9: The term “the first plurality” lacks antecedent basis in the claim. For examination purposes, claim 9 is interpreted as corresponding to the embodiment shown in figure 1F1. Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claim(s) 1, 4, 6-8 and 13 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by CONWAY et al. (U.S. Publication No. 2021/0167509). CONWAY, in figure 9, discloses: 1. A cavity backed antenna assembly (5000) comprising: a conductive lower wall (115) and two or more conductive side walls (116) at least in part defining a cavity; a first layer and a second layer each comprising a first dielectric material (310a) above the conductive lower wall and within the cavity; a third layer comprising a second dielectric material (340a) between and separating the first and second layers, the second dielectric material compositionally different from the first dielectric material; and a first conductive structure (one arm of 220, as shown in fig. 3) and a second conductive structure (other arm of 220, as shown in fig. 3) separated by a third dielectric material (210), wherein the first conductive structure and the second conductive structure are within the cavity and above the first and second layers. 4. The cavity backed antenna assembly of claim 1, wherein the second dielectric material has a dielectric constant of at most 1.5 (para. [0040]). 6. The cavity backed antenna assembly of claim 1, wherein: the two or more conductive side walls comprises a first conductive sidewall, a second conductive sidewall, a third conductive sidewall, and a fourth conductive sidewall (fig. 5); and one or both the first and second layers of the first dielectric material has a rectangular structure that extends from the first conductive sidewall to the second conductive sidewall opposite the first conductive sidewall, and also from the third conductive sidewall to the fourth conductive sidewall opposite the third conductive sidewall (figs. 5 and 9). 7. The cavity backed antenna assembly of claim 1, wherein: the first layer or second layer is completely within a portion of the cavity (fig. 4); the portion of the cavity has a maximum length, a maximum width, and a maximum cross-sectional area based on the maximum length and maximum width; and the first layer or second layer occupies only a portion of the maximum cross-sectional area (fig. 10). 8. The cavity backed antenna assembly of claim 7, wherein the first layer or second layer occupies 50% to 75% of the maximum cross-sectional area (fig. 10). 13. The cavity backed antenna assembly of claim 1, further comprising: a ground plane comprising conductive material (119), the ground plane having an opening therewithin; and an upper layer comprising a fourth dielectric material (120) extending through the opening (111) within the ground plane, the upper layer defining a ceiling of the cavity, wherein the upper layer is a radome of the cavity backed antenna assembly (fig. 1). Allowable Subject Matter Claims 2, 3, 5, 9-12 and 14 would be allowable if rewritten to overcome the rejection(s) under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), 2nd paragraph, set forth in this Office action and to include all of the limitations of the base claim and any intervening claims. The allowability of these claims is based on the claimed invention being limited to either of the embodiments shown in figures. 1F and 1F1. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Zink et al. (U.S. Patent No. 7,852,280) discloses an antenna comprising a crossed pair of center-fed end-loaded bent-dipole radiators which are structurally embedded into a properly loaded cavity. Any inquiry concerning this communication or earlier communications from the examiner should be directed to ROBERT KARACSONY whose telephone number is (571)270-1268. The examiner can normally be reached 9:00 am - 5:00 pm, Monday - Friday. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Dimary Lopez can be reached at (571) 270-7893. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /Robert Karacsony/ Primary Examiner, Art Unit 2845
Read full office action

Prosecution Timeline

Oct 13, 2023
Application Filed
Nov 15, 2025
Non-Final Rejection — §102, §112 (current)

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
77%
Grant Probability
92%
With Interview (+14.8%)
2y 10m
Median Time to Grant
Low
PTA Risk
Based on 908 resolved cases by this examiner. Grant probability derived from career allow rate.

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